Acronyms have become an increasingly prevalent part of western culture. They are used in almost all occupations as a form of communications shorthand. This list is an attempt to identify and explain those acronyms in common usage among transportation professionals in California.

The list was compiled by a former Caltrans employee with some additions from TCAG over a number of years and is not an official Caltrans document nor an official TCAG document. It is offered as an informational tool. Its presence on this website does not constitute advocacy or requirement of usage. If you have comments, questions or additions, please contact the Division of Local Assistance Training Coordinator and

3C Continuing, Cooperative and Comprehensive planning
3E Education, Enforcement & Encouragement (SR2S)
3R Resurfacing, Restoration & Rehabilitation work
4R All of the above, plus Reconstruction
404 ACOE permit for waterway dredging or filling
gAA Affirmative Action
AAEE American Academy of Environmental Engineers
AA/EO Affirmative Action and Equal Opportunity
AAMAS Asphalt Aggregate Mixture Analysis System
AAP Arterial Analysis Package
AAR Agency Action Request
AARP American Association of Retired Persons
AASHTO American Assoc. of State Highway Officials
AADT Average Annual Daily Traffic (two way)
AADTT Average Annual Daily Truck Traffic
AB Aggregate Base
AB69 Created RTPAs
AB140 1988, Deddeh Act, revised the STIP process
AB402 1977, Alquist/Ingalls Act, California Transportation Reform Act,
set up the STIP process & CTC
AB 872 1999: Authorizes local agencies to spend Fed & State matching funds in current STIP for eligible work prior to allocation by CTC.
AB1012 1999: Main intent to reduce large cash balance in State Highway Account by accelerating project delivery. Contains use it or lose it language whereby funds not obligated within three years of allocation lapse and are distributed to other projects.
AB1475 SR2S established in CA
AB2928 2000: Traffic Congestion Relief Act, $5 billion. Also establishes exchange of Fed RSTP & CMAQ funds for State transportation funds.
AB3929 Transportation Enhancement Relief Act
ABA Appropriated Budget Authority
ABAG Association of Bay Area Governments
ABET Accreditation Board for Engineering
and Technology
ABM Air Blown Mortar
ABME Area Bridge Maintenance Engineer
ABS Acroconitril-Butadiene-Styrene,
Antilock Braking System
AC Advance Construction
A&C Abatement and Control
ACB Asphalt Concrete Base
ACE Alamont Commuter Express;
Rail Program – Stockton to San Jose
ACHP Advisory Council on Historic Preservation
ACI American Concrete Institute
ACOE Army Corps of Engineers
ACP Asphalt Concrete Pavement,
Asbestos Cement Pipe
ACPA American Concrete Pavement Assoc.
ACPPA American Concrete Pressure Pipe Association
ACR Allocation Change Request
ACSP Automated Capital Spending Plan
ACTA Alameda County Transportation Authority
ACWP Actual Cost of Work Performed
ADA Americans with Disabilities Act,
Advance Deposit Application
(for local program reimbursements.)
ADAAG Americans with Disabilities Act
Accessibility Guidelines
ADIS Advanced Driver Information System
ADM Arrow Diagramming Method
ADMS Archived Data Management Subsystem (ITS)
ADR Alternative Dispute Resolution
AdSC Administrative Service Center
ADT Average Daily Traffic
ADUS Archived Data User Service (ITS)
AE Area Engineer
A&E Architectural & Engineering
AED Associated Equipment Distributors
AEM Acoustic Emission Monitoring
AEP Association of Environmental Professionals
AFD Architecture Flow Diagram
AFO Animal Feeding Operation
AFT American Farmland Trust
AGC Association of General Contractors
AGT Automated Guideway Transit
AHAR Automatic Highway Advisory Radio
AHS Automated Highway System,
Average Highway Speed
AI Artificial Intelligence; active ingredient
Asphalt Institute
AIA American Institute of Architects
AIAC American Indian Advisory Council
AI/E Architectural Inventory/Evaluation form
AID Architecture Interconnect Diagram (ITS)
AIHA American Industrial Health Association
AIMS Agency Information Management Strategy (TMS)
AIP American Institute of Planners
AIRS Aerometric Information Retrieval System
ALGOL Algebraic Oriented Language
ALOADS Automated Location and Design System
AL Acceptable Level,
regulatory Action Level (water qual.)
ALP Annual Leave Program
AM Amplitude Modulation, Anti Meridian
AMBAG Association of Monterey County Bay Area Govts
AMBER alert America’s Missing: Broadcast Emergency Response
AMFA Alternative Motor Fuels Act
AMIS Automated Management Information System
AMPS Advanced Mobile Phone System (ITS)
ANPRM Advanced Notice of Proposed Rule Making
ANSI American National Standards Institute
ANWR Arctic National Wildlife Refuge (Alaska)
AO Agency Object (3-digit code used in TRS,
also in WBS)
AOA Activity-on-Arrow
AON Activity-on-Node
APA Asphalt Pavement Alliance
APE Area of Potential Effect
APCD Air Pollution Control District
APDE Advance Project Development Element
APEC Automated Procedures for Engin. Consultants
APEI Area of Potential Environmental Impact
APHA American Public Health Association
APM Area Project Managers,
Assistant Project Manager
APN Assessor’s Parcel Number
ARRA Asphalt Recycling and Reclamation Assoc.
APS Advance Planning Study;
Accessible Pedestrian Signals
APSEA Asian-Pacific State Employees Association
APT Accelerated Pavement Testing
APTA American Public Transit Association
APTS Advanced Public Transportation System (ITS)
APU auxiliary power units
APWA American Public Works Association
AQCP Air Quality Control Program
AQCR Air-Quality Control Region
AQI Air Quality Index
AQMA Air-Quality Maintenance Area
AQMD Air Quality Management District
AQMP Air Quality Management Plan
ARA Automatic Road Analyzer
ARB Air Resources Board
AR’s Attainment Regulations
AREA American Railway Engineering Association
ARHM Asphalt-Rubber Hot Mix
ARHM-GG Asphalt-Rubber Hot Mix – Gap Graded
ARM Air Resources Management
ARTBA American Road & Transportation Builders Assoc.
ARTS Advanced Rural Transportation Systems
AS Aggregate Subbase
ASAP As-Soon-As-Possible
ASC Admin. Services Center
Accounting Services Center
Agricultural Services Center
ASCE American Society of Civil Engineers
ASCII American Standard Code of Info. Interchange
ASF Automotive Safety Foundation
ASHRAE American Society of Heating, Refrigerating, and Air-Conditioning Engineers
ASI Acceleration Severity Index
ASME American Society of Mechanical Engineers
ASNT American Society for Nondestructive Testing
ASPEN Automated Telephone Answering System
ASR Archaeological Survey Report;
(Evaluation of prehistoric archaeological resources in the project study area)
Alkali-silica reactivity
ASRP Aluminum Spiral Rib Pipe
AST Acceptance Samples and Tests
ASTM American Society for Testing Materials
ATA American Trucking Association
ATIS Advanced Traveler Information Systems
ATMS Advanced Traffic Management Systems
ATPB Asphalt Treated Permeable Base
ATSAC Automated Traffic Surveillance & Control System
ATSD Advanced Transportation System Development
ATSSA American Traffic Safety Services Association
ATV All Terrain Vehicle
AU Animal Unit
AVCO Automatic Vehicle Control Systems
AVCS Advanced Vehicle Control Systems (ITS)
AVI Automated Vehicle Identification
AVL Authorized Vehicle Lane;
Automated Vehicle Location (ITS)
AVO Automated Vehicle Operation (ITS)
AVR Average Vehicle Ridership
AWRA American Water Resources Association
AWS Alternate Work Schedule American Welding Society
AWT Average Weekday Traffic
AWWA American Water Works Association
BAC Blood Alcohol Concentration,
Budget at Completion
BACM Best Available Control Measures
BACT Best Available Control Technology
BADT Best Available Demonstrated Technology
BAGR Bridge Approach Guard Rail
BALI Basic Arterial Local Intersection
BAMS Bid Analysis and Management System
BARM Basic Asphalt Recycling Manual
BART Bay Area Rapid Transit
BAS Bridge Approach Slab
BASS Black Advocates in State Service
BASIC Beginners All Purpose Symbolic Instruction Code
BAT Best Available Technology,
Bureau of Apprenticeship and Training (DOL)
BB Beginning of Bridge
BBS Bulletin Board System,
Battery Backup System
BC Beginning of Curve
BCA Benefit Cost Analysis
BCO Thin-Bonded Concrete Overlay
BCP Budget Change Proposal: Official request to D/Finance & Legislature to revise level or sources of funding.
BCR Begin Curb Return
BCT Breakaway Cable Terminal
BCWP Budgeted Cost of Work Performed
BCWS Budgeted Cost of Work Scheduled
BEA 1990 Budget Enforcement Act of 1990
BEAR Broad Emergency Assistance Radio (System)
BEES Basic Engineering Estimating System
BEP Business Enterprise Program
BER Bridge Evaluation Report
BFRs Brominated Flame Retardants: widely used in plastics, foams, textiles, many electrical appliances, and building materials such as house walls, roofs and parking decks. Increasing amounts of BFR residues have been detected in humans and the environment.
BHT Business, Housing, and Transportation Agency
BIA Bureau of Indian Affairs;
Building Industry Association
BIOS Basic Input/Operating System
BIR Bridge Inspection Report
BIT Binary Digit
BLA Bicycle Lane Account program (State)
BLM Bureau of Land Management
BMP Best Management Practice
BMS Bridge Management System, process for achieving cost effective maintenance
BNF Backus- Naur Form (ITS)
BNSF Burlington Northern Santa Fe
BO Budget Obligations, Biological Opinion
BOD Biochemical Oxygen Demand,
Biological Oxygen Demand
BOD5 Biochemical oxygen demand (as measured in the standard 5-day test)
BSO Building, Structures and Obstruction report (HPSR)
BP Before Present, Boiling Point
BPM Beginning Post Mile.
= zero at south or west County line
BPR Business Process Review
(1997 study of project management in Caltrans)
BPR Bureau of Public Roads
BRT Bus Rapid Transit (ITS)
BSR Beginning of Slope Rounding
BSW Back of Sidewalk
BTA Bicycle Transportation Account
BT&H Business, Transportation and Housing Agency
BTOS Basic Traffic Operations System
BTS Bureau of Transportation Statistics
BUN Blood Urea Nitrogen
BVC Begin Vertical Curve
BW Barbed Wire
BWF Barbed Wire Fence
CAA Federal Clean Air Act (1970),
Cable Anchor Assembly
CAAA Clean Air Act Amendment of 1990,
(1977 & 1970)
CA Contract Authority, Certification Acceptance
CAATS Calif. Alliance for Advanced Transportation Systems
CAC California Administrative Code,
Citizens Advisory Committee
CAD Computer-Aided Drafting
CADD Computer-Aided Drafting and Design
CAER Community Awareness and Emergency Response
CAFO Concentrated Animal Feedlot;
Consent Agreement/Final Order
CAG Citizens Advisory Group
CAH Controlled Access Highways
CALACT Calif. Association for Coordinated Transportation
CASASFMRA California Association of Farm Managers and Rural Assessors
CALNET Calif. Integrated Telecom. System (8-….)
Cal OES California Office of Emergency Services
Cal/OSHA Calif. Office of Safety and Health Administration
CAM Caltrans Administrative Manual,
Cooperative Agreement Manual
CAMP Continuous Air Monitoring Program
CANDE Culvert Analysis and Design
CAO Corrective Action Order
CAP Corrugated Aluminum Pipe, Certification Acceptance Plan
Corrective Action Plan. Control Account Plan
Cost Allocation Procedure. Criteria Air Pollutant
CAPA Corrugated Aluminum Pipe Arch
CAPM Capital Preventive Maintenance
CAQP Congestion and Air Quality Program
CAR Caltrans Action Request, Cooperative Agreement Report
CARB California Air Resources Board
CARS Caltrans Auxiliary Radio System
CAS Construction area signs
CASAC Clean Air Scientific Advisory Committee
CASE Computer Aided Software Engineering;
Computer Aided Systems Engineering (ITS)
CASP California Aviation System Plan;
Corrugated Aluminized Steel Pipe
CAT EX Categorical Exemption (State);
Categorical Exclusion (Federal)
CATIA Clean Air and Transportation Improvement Act
CaTNAP California Traffic Noise Analysis Protocol (
CATV Cable Television
CB Catch Basin, Citizens Band
CBA Cost Benefit Analysis
CBC California Bicycle Coalition,
California Building Code
CBD Central Business District
CBMC Causes Beyond My Control (my coinage)
CBO Congressional Budget Office
CBR California Bearing Ratio
CBTP Community Based Transportation Planning grants
CC Construction Complete
CCA California Coastal Act of 1976
CCAA Calif. Clean Air Act
CCAPA California Chapter of the American Planning Association
CCB Change Control Board
CCC California Coastal Commission;
California Conservation Corps
CCI Construction Cost Index
CCIC Central California Information Center
CCMP Comprehensive Conservation and Manage. Plan
CCO Contract Change Order
CCR California Code of Regulations
CCROC California Civil Rights Officers Council
CCS California Coordinate System;
Construction Control Survey
CCSFCC City-County-State-Federal Cooperation Council
CCTV Closed Circuit TV
CD Contract delegation (purchase order)
CDC Centers for Disease Control
CDF California Department of Forestry
CDBG Community Development Block Grant
CDFG Calif. Dept of Fish & Game
CDH California Division of Highways
CDL California Drivers License
CDMA Code Division Multiple Access (ITS)
CDPD Cellular Digital Packet Data (ITS)
CD(PO) Contract Delegation (Purchase Order)
CE Categorical Exclusion (NEPA);
Categorical Exemption, (CEQA)
Construction Engineering
CEA Career Executive Assignment (Appointment)
CEAC County Engineers Association of California;
Caltrans Employment Advisory Committee
CEBC Conference
CEC California Energy Commission;
Caltrans Encroachment Committee
CELSOC Consulting Engs. and Land Surveyors of Calif.
CEMs Continuous Emissions Monitors
CEP Cumulative Exposure Project
CEQ Council of Environmental Quality
(Federal Agency)
CEQA California Environmental Quality Act (1970)
CERCLA Comprehensive Environmental.Response, Compensation/Liab. Act
CERES Calif. Envir. Resources Evaluation System
CERF Civil Engineering Research Foundation
CERL Construction Engineering Research Laboratory
CESA Calif. Endangered Species Act
CEU Continuing Education Unit
CFC Cost of Facilities Capital, Chlorofluorocarbons
CFDA Catalogue of Federal Domestic Assistance
CFM Chlorofluoromethanes
CFR Code of Federal Regulations
CFRA The California Family Rights Act of 1992 is a State law administered and enforced by the California Department of Fair Employment and Housing. CFRA was revised to conform to the Family Medical Leave Act of 1993.
CFRP Carbon-Fiber-Reinforced-Plastic
CFS Cubic feet per second
CFU Colony Forming Unit (water qual)
C&G Curb and Gutter
CGP Construction General Permit (NPDES)
CH4 Methane
CHIN California Highway Information Network
CHP Calif. Highway Patrol
CHIN California Highway Information Network:
1-800-427-7623, 999
or, #999
CHRIS Calif. Historical Resources Information System
CIA Community Impact Assessment; Evaluates the impacts that a project may have on community, incl, neighborhoods and farmland.
CIC Critical Intersection Control
CIDH Cast-in-Drilled-Hole
CIMAC Caltrans Improves Mobility Across California
CIP Capital Improvement Program – 7-year program to maintain or improve traffic LOS & transit performance and to mitigate impacts identified by the CMP;
Cast-in-Place; cast iron pipe
CIPCP cast-in-place concrete pipe
CIR Council on Intergovernmental Relations
Cold In Place (recycling of asphalt)
CIT California Institute of Technology
CITAB Calif. Information Technology Advisory Board
CIU Controller Interface Unit
CIWMB California Integrated Waste Management Board
C&L Certification and Licensing
CLAS California Leave Accounting System
CLP Continuous Learning Program
CLUP Comprehensive Land Use Plan
CMA Congestion Management Agencies
CMAQ Congestion Mitigation and Air Quality
CMB Concrete Median Barrier
CMC Construction Metrication Council
CMP Congestion Management Program, Plan;
Corridor Management Plan (Scenic Highways);
Corrugated Metal Pipe
CMS Congestion Management System, Changeable Message Signs
CMSA Consolidated Metropolitan Statistical Area
CMV commercial motor vehicles
CNDDB California Natural Diversity Data Base
CNG Compressed Natural Gas
CNLM Center for Natural Lands Management.
CNPS California Native Plant Society (data base)
CO Carbon Monoxide
COB Close of Business
COBOL Common Business Oriented Language
COBRA Consolidated Omnibus Reconciliation Act
COCO Contractor-Owned/ Contractor-Operated
COD Chemical Oxygen Demand
CODP Career Opportunity Development Program
COE Category of Expenditure (budgetary grouping)
U.S. Army Corps of Engineers
COFPAES Council on the Federal Procurement of Architectural and Engineering Services
COG Council of Governments (local, see LTA)
COH Coefficient Of Haze
COGO coordinate geometry
COL Collector (Urban)
Congestion Reduced speeds less than 35 MPH
for longer than 15 min.
COP Capital Outlay Projects
CORBA Common Object Request Broker Architecture (ITS)
COS Capital Outlay Support
COS College of the Sequoias
COTR Contracting Officer Technical Representative (ITS)
COZEEP COnstruction Zone Enhanced Enforcement Program or Patrol
CP Capital Projects
CPC Consolidated Planning Committee (STANCOG)
CPF Combined Pay Factor
CPFF Cost-Plus-Fixed-Fee
CPH California Permit Handbook
CPI Cost Performance Index
CPIF Cost-Plus-Incentive-Fee
CPM Critical Path Method
CPMC Capital Projects Management Council
CPR Cardio-Pulminary Resusitation
CPRC California Public Resources Code
CPSD Capital Project Skill Development
CPU Central Processing Unit
CPUC Calif. Public Utilities Commission
CRAC Cold Recycled AC
CRAP Construction Records and Procedures
CRB Contract Review Board
CRCP Continuously Reinforced Concrete Pavement
CRDA Cooperative Research and Development Agreement
CRHP California Register of Historic Places
CRIP Cost Reduction Incentive Proposal
CRLF California Red Legged Frog
CRP Conservation Reserve Program;
Combined Road Plans
CRSI Concrete Reinforcing Steel Institute
CRT Cathode Ray Tube
CRV California Redemption Value
CSAC California State Association of Counties;
California Supervisors Association of California
CSD Context Sensitive Design
CSEA California State Employees Association
CSHC Calif. Streets & Highways Code
CSI Common Sense Initiative;
Compliance Sampling Inspection
CSIP Corridor Safety Improvement Program
CSO Combined Sewer Overflow
CSP Corrugated Steel Pipe;
Communication Service Provider (ITS)
CSPA Corrugated Steel Pipe Arch
CSRC California Special Reference Center
(global positioning technologies)
CSS Context Sensitive Solutions (involving all stakeholders in the development of a project to ensure that a project fits its physical setting and preserves scenic, aesthetic, historic and environmental resources while maintaining safety and mobility.
CSTI California Specialized Training Institute
CSUS California State University, Stanislaus; Sac.
CSWC Construction Storm Water Coordinator
CT Caltrans, Census Tract
CTAA Community Transportation Assoc. of America
CTAP Cooperative Training Assistance Program (Fed)
CTB Cement Treated Base
CTC California Transportation Commission;
Nine appointed members
CTE Center For Transportation And The Environment
CTO Compensatory Time Off
CTP California Transportation Plan
CTIFS Calif. Transportation Infrastructure Funding System
CTIPS California Transportation Improvement Plan System. A computer database used by CT & MPOs to input & track Fed. Funded transportation projects. See LPAMS
CTIS California Transportation Investment Strategy
CTPB Cement Treated Permeable Base
CTR California Toxics Rule
C-TRIS Calif. Transportation Research Info. System (UCB)
CTS Commuter Transportation Services
CTSA Coordinated Service Transportation Agency
CUF Commercially Useful Function (DBE)
CV Cost Variance
CVAS Commercial Vehicle Administration Subsystem (ITS)
CVCS Commercial Vehicle Check Subsystem (ITS)
CVHAS Cooperative Vehicle-Highway Automation Systems
CVISN Commercial Vehicle Info. Systems and Networks (ITS)
CVO Commercial Vehicle Operations (ITS)
CVS Commercial Vehicle Subsystem (ITS)
CWA Clean Water Act
CWD Corridor Wide Display System (ITS)
CWNS Clean Water Needs Survey
CY Calendar Year
CYA Cover Your Assets (not CT); California Youth Authority
CZMA Coastal Zone Management Act
CZARA Coastal Zone Act Reauthorization Amendments
DAB Digital Audio Broadcast (ITS)
DAC Disability Advisory Council
DAF Damage Assessment Form
DAMP Drainage Analysis & Modeling Program
DAR Defense Access Roads
DAR Dial-a-Ride
DART Dinuba Area Regional Transit
DARTS Dynamic Arterial Responsive Traffic Signal System
DAT Diagnostic Acceptance Testing
DAT.COM Director’s Advisory Team for Communication
DBA Doing Business As, Decibels, “A” Scale
DBE Disadvantaged Business Enterprise
DBELO Disadvantaged Business Enterprise Liaison Officer
DBMS Data Base Management System
D/C Demand Capacity ratio
DCIU Discrimination Complaint Investigation Unit
DCP Dynamic Cone Penetrometer
DCS Data Collection System
DCU Discrimination Complaint Unit
DD District Director; Data Dictionary (ITS)
DDC District Division Chief
DDD Deputy District Director
DDE Data Dictionary Element (ITS)
DDT DichloroDiphenylTrichloroethane
DEB District Environmental Branch
DED Draft Environmental Document
DEIR Draft Environmental Impact Report (CEQA)
DEIS Draft Environmental Impact Statement (NEPA)
DEN Data Exchange Network (ITS)
DES Division of Engineering Services Diethylstilbesterol
DF Douglas Fir
DFD Data Flow Diagram (ITS)
DfE Design for the Environment
DFEH Department of Fair Employment and Housing (California)
DFG Dept of Fish and Game (Cal)
DGAC Dense Graded Asphalt Concrete
DGAC(R) Dense Graded Asphalt Concrete (Rubberized)
DGPS Differential Global Positioning System (ITS)
DGS Department of General Services
DHS Department of Health Services
DHHS Department of Health and Human Services (Feds)
DHV Two way Design Hourly Volume
DI Drainage Inlet
DIB Design Information Bulletin
DIB 82 Pedestrian Accessibility Guidelines for Highway Projects
DIP Diamond Interchange Program
DLAE District Local Assistance Engineer
DLR Detection Limit for Reporting (water qual.)
DMBB Double metal beam barrier
DME District Materials Engineer
DMR Discharge Monitoring Report
DMS Dynamic Message Sign (ITS)
DMT Division of Mass Transportation
DMV Department of Motor Vehicles
DNA deoxyribonucleic acid
DND Draft Negative Declaration
DOA Division of Aeronautics; Division of Accounting
DOC Department of Commerce (Feds)
DOD Department Of Defense
DOE Department Of Energy; District Office Engineer
DOF Department of Finance
DOJ Department of Justice (Feds)
DOL Department of Labor (Feds)
DLA Division of Local Assistance (formerly OLP)
DOL FOH Dept. of Labor Field Operations Handbook (Feds)
DOS Division of Structures; Disk Operating System
DOT Dept. of Transportation
DOTP Division of Transportation Planning
DPA Dept. of Personnel Administration
DPI Dots per Inch
DPR Department of Parks and Recreation (The Office of Historic Preservation which administers Section 106 of the Historic Preservation Act is part of State Parks and Recreation. Hence, the DPR forms for Section 106.)
DRB Dispute Review Board
DRI Division of Research & Innovation
DRIM Draft Relocation Impact Memo
DRIS Draft Relocation Impact Study/Statement
DROA departmental restriction of appointments
DSA Division of the State Architect,
Disturbed Soil Area
DSB Donor State Bonus funds
DSC Division of Structure Construction
DSI Detailed Site Investigation
DSMP District System Management Plan
DSRC Dedicated Short Range Communications (ITS)
DST Daylight Savings Time
DSWC District Storm Water Coordinator
DTA Dynamic Traffic Assignment (ITS)
DTAC Departmental Transportation Advisory Committee
DTBB double thrie beam barrier
DTIM Direct Travel Impact Model
DTM Digital Terrain Modeling
DTR Director’s Tracking Report
(tracks consultant services contracts)
DVAC District Value Analysis Coordinator
DVBE Disadvantaged Veteran Business Enterprise
DWEL Drinking Water Equivalent Level
DWNS Drinking Water Needs Survey
DWR Dept. of Water Resources
DWS Drinking Water Standard
EA Expenditure Authorization;
Endangerment Assessment;
Enforcement Agreement;
Environmental Action;
Environmental Assessment;
Environmental Audit
EAC Estimate at Completion
EAP Employee Assistance Program;
Environmental Action Plan
EAR Employee Action Report
EBL Eligible Bridge List
EC Environmental Coordinator,
End Horizontal Curve, End Curve
ECPA Electronic Communications Privacy Act (ITS)
ECR Engineering Cost Reporting system,
End of Curb Return
ED Environmental Document
EDA Employee Development Appraisal Environmental Document Approved
EDAPTS Efficient Development of Advanced Public Transportation Systems
EDI Electronic Data Interchange (ITS)
EDM Electronic Distance Measuring
EDP Electronic Data Processing;
Early Deployment Plan (ITS)
EDW effluent-dominated water
EEG electroencephalogram
EEM Environmental Enhancement & Mitigation program (State)
EEO Equal Employment Opportunity
EEOC Equal Employment Opportunity Commission
EEZ Exclusive Economic Zone,
200 miles beyond coast, Magnusen-Stevens Act
EF Early Finish
EFH Essential Fish Habitat
EFT Electronic Fund Transfer
EIR Environmental Impact Report (CEQA)
EIS Environmental Impact Statement (NEPA)
EIT Engineer-in-Training
EJ Environmental Justice
EKG electrocardiogram
ELI Element Level Inspection (bridges)
EMC Event Mean Concentration (Storm Runoff); Emergency Management Center (ITS)
EMFAQ Emissions Factors Model
EMMS Emissions Management Subsystem (ITS)
EMS Extinguishable Message Signs
Equipment Management Systems
EO Equal Opportunity, Executive Order
EOC Emergency Operations Center
EOG Education And Outreach Group
EOS Equivalent Opening Size (Geotextile-Fabric); Edge of Shoulder
E&P Environmental & Permit
EPA Environmental Protection Agency
EPCRA Emergency Planning and Community
Right-to-Know Act
EPI Economic Policy Institute
EPL Excluded Partial List (DBE)
EPM Ending Post Mile
EPROM Erasable Programmable Read-Only Memory
ER Emergency Relief (Fed)
ERC Emergency Resource Center
ERISA Employee Retirement Income Security
ERNS Emergency Response Notification System
ERPP Ecosystem Restoration Program Plan (CALFED)
ES Early Start
ESA Endangered Species Act;
Environmentally Sensitive Area
ESAL Equivalent Single Axle Load, 80 kN
ESC Engineering Services Center
ESMR Enhanced Specialized Mobile Radio (ITS)
ESP Enhanced Services Program
ESR End of Slope Rounding
ESU Evolutionary Significant Unit
(fall, winter & spring runs of salmon)
ET Earliest Time of Completion
ETC Estimate to Complete,
Electronic Toll Collection (ITS)
ETBE Ethyl Tertiary Butyl Ether
ETS Emergency Telephone Services (ITS)
ETTM Electronic Toll Collection and Traffic Management
ETW Edge of Traveled Way
EV Earned Value
EVC End Vertical Curve
EWRI Environmental & Water Resources Institute (of ASCE)
EXPEAR Expert System Pavement Evaluation and Rehabilitation
E-76 Authorization to Proceed Summary Form
FAA Federal Aviation Administration
FACTS Flexible Advanced Computer Traffic Signal System
FADS Federal Aid Data System: System which DLAEs & HQ enter project information and which links CT to FHWA’s FMIS system. Does not link to LP2000.
FAE Federal-Aid Eligibility Code: This single-digit code is a prefix used with the three-digit Agency Object Code to form the Caltrans four-digit Object (FAE 6, 7, or 8) and Activity (FAE 1 or 2) Codes. The FAE denotes whether or not the Object/Activity Code is eligible for federal reimbursement. FAE 1 or 6 denotes eligibility for federal reimbursement, FAE 2 or 7 denotes non-eligibility for reimbursement, and FAE 8 denotes undetermined eligibility.
FAHP Federal Aid Highway Program
FAI Federal Aid Interstate
FAP Federal Aid Primary
FAPG Federal Aid Policy Guide
FAQ Frequently Asked Questions
FAR Federal Acquisition Regulations
FARA Federal Acquisition Reform Act
FARES First American Real Estate Solutions
FARS Fatal Accident Reporting System (ITS)
FAS Federal Aid Secondary Funding
FAU Federal Aide Urban funding
F&C Frame & Cover
F&G Frame & Grate
FCAA Federal Clean Air Act of 1990
FCRTA Fresno County Rural Transit Agency
FCWA Federal Clean Water Act
FCR Flexible Congestion Relief program
(State, discontinued)
FDR Full Depth Reclamation (of pavament)
FE Fund Estimate; Fugitive Emissions
FEBBS Federal Electronic Bulletin Board System
FED Final Environmental Document
FEHA Fair Employment and Housing Act (Calif.)
FEIN Federal Employer Identification Number
FEIR Final Environmental Impact Report (CEQA)
FEIS Final Environmental Impact Statement (NEPA)
FEMA Federal Emergency Management Agency
FERC Federal Energy Regulatory Commission
FES Flared end section
FESA Federal Endangered Species Act
FF Free Float / Finish to Finish
FFA Future Farmers of America
FFGA Full Funding Grant Agreements
FFP Firm Fixed Price
FFS Fee For Service health plan
FFY Federal Fiscal Year (October 1 thru September 30)
FHLMC Federal Home Loan Mortgage Corporation (Freddie Mac)
FHPM Federal Aid Highway Program Manual
FHWA Federal Highway Administration;
administers Federal highway funds
FICA Federal Insurance Contributions Act
FIF Final Inspection Form
FIP Federal Implementation Plan
FIPS Federal Information Processing Standard (ITS)
FIR Federal Indian Reservation
FIRM Federal Insurance Rate Maps (Flood Plains)
F/L Finance Letter
FLEP Forest Land Enhancement Program
(U.S. Forest Service)
FLHD Federal Land Highway Division
FLHP Federal Lands Highway Program
Floodplain Risk and Location Hydraulic Study:
Analyzes the potential for impacts that a project may have on increasing risk of flooding.
FLSA Fair Labor Standards Act
FM Function Manager
FMC Freeway Management Center (ITS)
FMCS Fleet Management and Control Systems
FMCSA Federal Motor Carrier Safety Administration
FMIS Federal Management Information System
FMLA Family and Medical Leave Act of 1993
FMMP Farmland Mapping and Monitoring Program
FMP Fishery Management Plan; File Maker Pro
FMS Fleet Management Subsystem (ITS)
FMU Forest Management Unit
FMVSS Federal Motor Vehicle Safety Standards
FNMA Federal National Mortgage Association
(“Fannie Mae”)
FNM-76 Form to FMIS, auth. to proceed
FO Functionally Obsolete (bridge)
FOE Finding of Effect; Friends Of the Earth
FOI Freedom of Information
FOIA Freedom Of Information Act
FONSI Finding of No Significant Impact (NEPA)
FOT Field Operational Test (ITS)
FPA Fair Practices Act (subletting and subcontracting)
FPIF Fixed-Price-Incentive-Fee
FPN Federal Project Number (FADS)
FPPA Farmland Protection Policy Act (US – 1984)
FPPP Facility Pollution Prevention Plans
FPR Final Program Review
FR Federal Register
FRA Federal Railroad Administration
FRIS Final Relocation Assistance Statement
FRM Federal Reference Method, Final Rule Making
FRO Federal Resources Office
FRP fiber reinforced polymer, used in concrete
F-SHRP Future Strategic Highway Research Program
FSOR Final Statement of Reasons
FS Finish-to-Start
FSA Flexible Spending Account health plan
FSHCC Fast Setting Hydraulic Cement Concrete
FSP Freeway Service Patrol
FSR Feasibility Study Report;
Financial Study Report
FSTIP Federal Statewide Transportation Improvement Program. Prepared by CT per ISTEA, includes all highway and transit projects funded under Title 23 and Federal Transit Act. It is the global funding document incorp. Programming for MPO TIPs, State STIP, SHOPP and local rural Federal aid work.
FTA Federal Transit Administration; administers Federal transit funds, alloc. dir to local agencies. Urban Mass Transportation Act of 1964
FTB Franchise Tax Board
FTE Focused Training Evaluation
Full-time Employee
FTIP Federal Transportation Improvement Program;
3-year list of transportation projects proposed within the planning area of an MPO. Short range version of RTP.
Projects are drawn from the STIP and SHOPP.
FTP File Transfer Protocol, Federal Test Procedures
FU Functional Unit
FVMSS Federal Motor Vehicle Safety Standards
FWD Falling Weight Deflectometer
FWPCA Federal Water Pollution Control Act
FWS Fish & Wildlife Service (US)
FY Fiscal Year
GAAP Generally Accepted Accounting Principles
GAO General Accounting Office
GAR Governor’s Action Request
GARVEE Grant Anticipation Revenue Vehicle bonds
GASB 34 Governmental Accounting Standards Board statement 34 (calls for state and local transportation agencies to include the costs of infrastructure assets in their financial statements)
GATS General Agreement on Trade in Services
GDP Gross Domestic Product
GE Gravel equivalent
GEP Good Engineering Practice
GERT Graphical Evaluation and Review Technique
Gf Gravel Factor
GFE Good Faith Effort
GHSA Governors Highway Safety Association
GHSR Governor’s Highway Safety Representative
GIS Geographic Information Systems
GNMA Government National Mortgage Association (“Ginnie Mae”)
GOGO Government-Owned/ Government-Operated
GPS Global Positioning System
GRAS Generally Recognized as Safe
GR Guard Rail
GRH Guaranteed Ride Home
GSA General Services Admin.
GUI Graphical User Interface
GVW Gross Vehicle Weight
GVWR Gross Vehicle Weight Rating
HA Health Advisory
H&T Hub and Tack
HABR Historic American Building Record
HABS Historic American Buildings Survey
HAER Historic American Engineering Record
HAP Hazardous Air Pollutant
HAPPS Hazardous Air Pollution Prioritization System
HAR Highway Advisory Radio
HASR Historic Architecture Survey Report; Evaluation of historic structures in the project study area
HAZMAT Hazardous Materials
HAZOPS Hazardous Operations
HB&M Humbolt Base and Meridian
HBO Health Benefits Office
HBRR Highway Bridge Rehab. & Replacement
(Fed program)
HCM Highway Capacity Manual
(Transportation Research Bd. )
HCP Habitat Conservation Plan
HCS Hazard Communication Standard
HDD Horizontal Directional Drilling
HDM Caltrans Highway Design Manual
HDPE High Density Polyethylene
HEDTL Harmer E Davis Transportation Library
HEEP Health and Environmental Effects Profile
HEPA Highly Efficient Particulate Air (Filter)
HERS-ST Highway Economic Requirements System-State Version software (for planning and scheduling highway work and determining future highway system needs.)
HES Hazard Elimination Safety program (Fed)
HFC Hydrofluorocarbon
HHS U.S. Department of Health and Human Services
HI Height of Instrument (surveying)
HIC Highway Interchange Center
HMA Hot Mix Asphalt
HMO Health Maintenance Organization
HMP Hydromodification Management Plan (to control post-development peak stormwater runoff discharge rates and duration)
HMP Hazard Mitigation Plan
HMS Highway Maintenance System
HMTA Hazardous Materials Transportation Act
HMWM High Molecular Weight Methacrylate
(deck crack mitigation)
HOV High Occupancy Vehicle
(2 and in some cases 3 or more per car.)
HP Horse Power
HPC High Performance Concrete (also UHPC)
HPMS Highway Performance Monitoring System
HP&R Highway Planning and Research
HPS High Performance Steel
HPSR Historic Properties Survey Report;
Summarizes findings of HRER, ASR and HASR
HR Human Resource
HRAC Hot Recycled AC
HRER Historic Resource Evaluation Report; Evaluation of historic significance of certain man made features (canals) in the project study area
HRI Highway Rail Intersection
HRNA Human Development Recovery Needs Assessments
HRIS Highway Research Information Service, Human Resources Information System
HSDB Hazardous Substance Data Base
HSIS Highway Safety Information System
HSNS Highway System of National Significance
HSP Highway Safety Plan
HSPF Heating Season Performance Factor
HSOPP Highway Systems Operations & Protection Plan
HSR High Speed Rail, Historic Survey Report
HSRI Highway Safety Research Institute
HTF Highway Trust Fund
HTIMS Highway Technology Information Management System
HTML Hypertext Markup Language
HTTP Hypertext Transport Protocol
HUD Housing & Urban Development;
Head Up Display (ITS)
Hydrology and Water Quality Study: Analyzes the increase in storm water runoff likely to occur and the potential impacts on water quality a project may have.
HUTA Highway User Tax Account
HVAC Heating, Ventilation, and Air-Conditioning system
HWMP Hazardous Waste Management Plan
IAST Independent Assurance Sampling and Testing
IBRC Innovative Bridge Research and Construction program (FHWA – TEA-21)
IBTC International Border Trade Corridor
ICAS Internet Contract Administration System
ICES Inter-modal Corridors of Economic Significance
I/D Incentive/Disincentive
IDL Interface Definition Language (ITS)
IDP Individual Development Plan
IEEE The Institute of Electrical and Electronic Engineers
IEN Information Exchange Network (ITS)
IFB Invitation for Bid
IGR Inter Governmental Review
IHSDM Interactive Highway Safety Design Model (software)
I/I Infiltration and Inflow
IIP Inter-regional Improvement Program
ILD Inductive Loop Detector
IMMS Integrated Maintenance Management System
IMPC Integrated Plant Management and Control
IMPROVE Interagency Monitoring of PROtected Environments
IMS Intermodal Facilities and Systems Management System
ILV/hr Intersecting Lane Vehicles per hour
IP Internet Protocol, Implementation Package
IPA Information Practices Act; places specific requirements on State agencies in the collection, use, maintenance, and dissemination of information relating to individuals.
IPG Interagency Planning Group
IRIS Integrated Risk Information System
IRP Interregional Partnership (STANCOG)
IRR Intercity Rail; Indian Reservation Roads
IRRS Interregional Route System
Interregional Road System Plan
IRS Internal Revenue Service
IRVM Integrated Roadside Vegetation Management
IRWA International Right of Way Association
IS Information Services, Initial Study
ISA Initial Site Assessment;
Evaluates potential for encountering hazardous materials in the project study area.
ISC Indirect Source Control
ISEA International Safety Equipment Assoc.
ISO International Standards Organization
ISP Information Service Provider
ISSC Information Systems Service Center
ISTEA Intermodal Surface Transportation Efficiency Act
IT Information Technology
ITA Intertribal Transportation Association
ITE Institute of Transportation Engineers
ITS Intelligent Transportation System s
ITS America Intelligent Transportation Society of America
ITSP Interregional Transportation Strategic Plan
ITI Intelligent Transportation Infrastructure
ITII International Technical Information Institute
ITIP Interregional Transportation Improvement Program; Portion of STIP that includes Caltrans selected projects (25% of fund)
ITMS Integrated Traffic Management System; or
Intermodal Transportation Management System
ITS Intelligent Transportation Systems;
Institute of Transportation Studies (UC Berkeley)
ITSP Interregional Transportation Strategic Plan
IUOE International Union of Operating Engineers
IVHS Intelligent Vehicle-Highway Systems (now ITS)
IVI Intelligent Vehicle Initiative
IVIS In Vehicle Information System (ITS)
JB Junction Box
JCL Job Control Language
JCP Jointed Concrete Pavement
JP joint pole
JPA Joint Powers Agreement
JPCP Jointed Plain Concrete Pavement
JRCP Jointed Reinforced Concrete
JS junction structure
KBES Knowledge Based Expert System
(Symbolic reasoning & Heuristics)
KISS Keep It Simple, Stupid (US Navy)
KSA Knowledge, Skills and Abilities
LA Local Agency
LAAPS Local Agency Automated Pay System
LACMTA Los Angeles County Metropolitan Transportation Authority
LACTC Los Angeles County Transportation Commission
LAFCO Local Agency Formation Commission
LAMBRA Local Agency Military Base Recovery Area
LAN Local Area Network
LAP Local Assistance Program
LAPG Local Assistance Program Guidelines
LAPM Local Assistance Procedures Manual
LARTS Los Angeles Regional Transportation Study
LASC Landscape Architecture Standards Committee
LCA Least Cost Alternate
LCB Lean Concrete Base
LCC Local Coastal Commission,
League of California Cities, Life Cycle Cost
LCCA Life Cycle Cost Analysis
LCD Liquid Crystal Display (Power Point Projector)
LCO Labor Compliance Officer
Local Capital Outlay projects
LCP Local Coastal Plan
LCS Lane Control Sign
LDAP Lightweight Directory Access Protocol
LDPE Low Density Polyethylene
LDS Labor Distribution System
LEAD Local Equivalent Area Drainage method
LED Light Emitting Diode
LEDPA Least Environmentally Damaging Practicable Alternative
LEL Lowest Explosive Level
LEM Location Efficient Mortgage (see TOD)
LEO Low-Earth Orbit Satellite System
LEP Limited English Proficiency
LESS Least Cost Estimating & Scheduling System
LF Late Finish; Linear Foot
LIBOR London InterBank Offered Rate
LIM Land Inventory and Monitoring system (SCS)
LIP Local Intersection Program
LJAC Local Jurisdiction Advisory Committee
LLP Limited Liability Partnership
LOC Local
LOE Level of Effort
LOL Layout Line
LOP Letter of Permission
LOS Level of Service (A=freeflow, F=gridlock)
LPA Local Programs Accounting
LPAMS Local Programs Accounting Management System: provides appropriation management and tracks expenditures for local assistance projects. Extracts data from CTIPS allowing LP2000 to process allocations.
LPG Liquid Petroleum Gas
LPP Local Programs Procedures
LPP# Local Programs Procedure #
LRDC Labor Relations Decision Council
LRFD Load & Resistant Factor Design
LRH Last Resort Housing
LRMS Location Reference Messaging Standard (ITS)
LROP Long Range Operations Plan
LRT Light Rail Transit
LS Lump sum, Late Start, Land Surveyor
LSSRP Local Seismic Safety Retrofit Program
LSTP Local Surface Transportation Plan
LSUM Linear Synchronous Unipolar Motor
LT Limited Term
L&T Lead and Tack (surveying)
LTA Local Transportation Authority
LTAP Local Technical Assistance Program
LTC Local Transportation Commission
LTEC Least Total Expected Cost to the public design
LTF Local Transportation Fund; receives TDA revenues = 0.25% sales tax for transit, bike & pedestrian
LTMA Lightweight Truck Mounted Attenuator
LTPP Long-Term Pavement Performance
LTS Lime Treated sub-Base
LUICE Land use Inventory Contingency and Edit
LUST Leaking Underground Storage Tank
LVDT Linear Variable Differential Transformers
LVR Low Volume Road
MA Master Agreement; Minimum Allocation funds: Minor Arterial
MACT Maximum Achievable Control Technology
MADT Monthly average daily
MAGLEV Magnetic Levitation Transportation Technology Deployment Programs
MAIT Multidisciplinary Accident Investigation Team
MAN Metropolitan Area Network (ITS)
MAP Million Annual Passengers,
Multiple Alternative Planning
MAR Material Adjustment Report
MATES Materials and Technology Engineering and Science
MB Metal Beam, Megabytes
MBB Metal Beam Barrier
MBE Minority Business Enterprise
MBGR Median Barrier Guard Rail
MBO Management by Objectives
MC Medium curing
MCAG Merced County Assoc. of Governments
MCD Minor Civil Division
MCE Maximum Credible Earthquake
MCEDC Merced City Economic Development Corp.
MCFC Molten Carbonate Fuel Cell
MCL Maximum Contaminant Level
MCLG maximum contaminant level goal (water qual)
MCM Minimum Control Measures (water qual)
MCP Municipal Compliance Plan
MCSAP Motor Carrier Safety Assistance Program
MDB&M Mt. Diablo Base and Meridian (surveying)
MDI Model Deployment Initiative (ITS)
MEA Master Environmental Assessment
MEP Minority Engineering Programs,
Maximum Extent Practicable (water qual)
MERS Maintenance Employees’ Reporting System
MESO Maintenance Employee Safety Orientation
META Maintenance Equipment Training Academy
METS Materials Engineering and Testing Services
MG Minimum Guarantee funds
MID Modesto Irrigation District
MIME Multipurpose Internet Mail Extension
Minor Project- Less than $750,000, not STIP or SHOPP. In California, minor capital outlay consists of construction projects or equipment acquired to complete a construction project estimated to cost less than $750,000. The California Transportation Commission allocates a fiscal year level for this category with specific project allocation approval delegated to the Department. Minor is further segregated into two categories: Minor A – Minor construction projects with an estimated contract value between $117K – $750K. Minor B – Minor construction projects with an estimated value less than $117,000.

MIS Management Information Systems, Major Investment Study
MITMT Major Incident Traffic Management Team
MJC Major Collector (Rural); Modesto Junior College
MLRA Major Land Resources Area
MMANC Municipal Management Association of Northern California
MMI Man-Machine Interface (ITS)
MMSI Maintenance Management System Improvement
MNC Minor Collector (Rural)
MOA Memorandum of Agreement
MODEM Modulator/Demodulator
(Convert binary to analog signal for phone)
MOE Measure of Effectiveness
MOS Metal-Oxide Semiconductor,
margin of safety
MOST Methodology for Optimizing Signal Timing
MOU Memorandum of understanding
MPGR Metal Plate Guard Railing
MPO Metropolitan Planning Organization
MPU Microprocessing Unit
MSA Merit Salary Adjustment
Metropolitan Statistical Area
Management System Activities, a two digit code for levels 5,6 or 7 in WBS, also on TRS
Medical Savings Account health plan Maintenance Superintendents Association
MS-DOS MicroSoft-Disk Operating System
MSDS Manufacturers Safety Data Sheet
MSE Mechanically Stabilized Earth Retaining
MS4 Municipal Separate Storm Sewer System
MSL Maintenance Service Level, Mean Sea Level
MSW Municipal Solid Waste
MT Mass Transit
MTA Mass Transit Account
MTC Metropolitan Transportation Commission
(Bay Area)
MTD Memo-To-Designers
MTDB Metropolitan Transit Development Board (San Diego)
MTMC Military Traffic Management Command
MTP Mass Transportation Program,
Metropolitan Transportation Plan
MUTCD Manual of Uniform Traffic Control Devices
MVMA Motor Vehicle Manufacturers Association
MWBE Minority Women-owned Business Enterprise
NA National Architecture (ITS)
NAA Non-attainment Area
NAAQS National Ambient Air Quality Standards
NACE National Association of Corrosion Engineers,
National Association of County Engineers
NACG National Association of County Governments
NAC National Association of Counties
NACTO The National Association of City Transportation Officials
NAD North American Datum (surveying)
NAE no adverse effect,
National Academy of Engineering
NAER National Architectural and Engineering Record
NAFTA North American Free Trade Agreement
NAGPRA Native American Graves Protection & Repatriation Act of 1990
NAHC Native American Heritage Commission
NAHSC National Automated Highway System Consortium
NAICS North American Industrial Classification System
NALEO National Association of Latino Elected and Appointed Officials
NAMS National Air Monitoring Stations
NAP Non-attainment Area Plan
NAPA National Academy for Public Assistance, National Asphalt Paving Association, National Automobile Parts Association
NAPCA National Air Pollution Control Administration
NAR National Architecture Review (ITS)
NARD Numerical Analysis of Roadside Design
NARSTO North American Research Strategy for Tropospheric Ozone
NAS National Academy of Sciences
NASA National Aeronautics and Space Administration
NASR Negative Archeological Survey Report
NASS National Accident Sampling System
NATTTC National Association of Transportation Technology Transfer Centers
NAV Navigation
NAWCA North American Wetlands Conservation Act
NB Northbound
NBI National Bridge Inventory, bridge data supplied by states for the NBIS (see also BMS)
NBIS National Bridge Inspection Standards, are minimum requirements for inspection standards
National Bridge Inventory System
NBS National Bureau of Standards
NBSSR Noise Barrier Scope Study (or Summary) Report for sound wall projects
NCAC National Crash Analysis Center
NCAPA Northern California Asphalt Producers Assoc.
NCAT National Center for Asphalt Technology
NCCER National Council for Civil Engineering Research
NCEER National Center for Earthquake Engineering Research
NCHRP National Cooperative Highway Research Program
NCPP National Center for Pavement Preservation
NCSL National Conference of State Legislatures
ND Negative Declaration, None Detected (water qual)
NDAA Natural Disaster Assistance Act
NDI Non-Industrial Disability Insurance
NDSP National Dam Safety Program
NDT Non-Destructive Testing
NE no effect
NEAR National Emergency Aid Radio
NEDS National Emissions Data System
NEEP National Experimental and Evaluation Program
NEHRP National Earthquake Hazards Reduction Program
NEIS National Environmental Information Service
NEMA National Electrical Manufacturers Association
NEPA National Environmental Policy Act (1969)- all Fed. funded projects require Fed. review
NES/BA Natural Environmental Survey / Biological Assessment; Evaluation of native species and habitat found in project study area.
NESHAP National Emission Standards for Hazardous Air Pollutants
NET National Emissions Trends Inventory
NFIP National Flood Insurance Program
NFPA National Fire Prevention Association
NGS National Geodetic Survey
NGVD National Geodetic Vertical Datum
NHI National Highway Institute
NHPA National Historic Preservation Act,
Federal, 1966, esp. section 106. See also State Public Resources Code Sections 5024 and 5024.5
NHPN National Highway Planning Network
NHS National Highway System
NHSB National Highway Safety Bureau
NHTSA National Highway Traffic Safety Administration
NIA National ITS Architecture
NICET National Institute for Certification in
Engineering Technologies
NIH National Institutes of Health
NII National Information Infrastructure (ITS)
NIMBY Not In My Back Yard
NIOSH National Institute for Occupational Safety and Health
NIPC National Infrastructure Protection Center (FBI)
NIST National Institute of Standards and Technology
NLAA Not Likely to Adversely Effect
NLT COB No Later Than Close Of Business
NMCSP National Motor Carrier Safety Program
NMFS National Marine Fisheries Service
NMSL National Maximum Speed Limit
NO Nitric Oxide
NOA Naturally Occurring Asbestos; Notice of Arrival
NOAA National Oceanic and Atmospheric Administration
NOAEL no-observed-adverse-effect level
NOEL No Observable Effect Level
NOC Notice of Construction
NOCC Notice of Construction Completion
NOD Notice of Determination
(CEQA – project approval)
NOI Notice of Intent
(NEPA process, notice placed in Federal Register
advising public that EIS will be prepared for a project)
NOL Naval Ordinance Laboratory
NOP Notice of Preparation
(CEQA – notice that EIS will be prepared)
NOPR Notice Of Proposed Rulemaking
NOS National Oceanic Survey
n.o.s. not otherwise specified
NOT Notice of Termination
N2O Nitrous Oxide
NOx Nitrogen Oxides
NORM Naturally Occurring Radioactive Material
NPDES National Pollutant Discharge Elimination System
(revised, thanks to Mary MacGillivray, District 7 Office of Project Studies)

NPHQ National Partnership for Highway Quality
NPRM Notice of Proposed Rule Making
NPS National Park Service
Non-point Source
NRC National Research Council
NRCS Natural Resources Conservation Service,
formerly SCS
NRCP Non Reinforced Concrete Pipe
NRDC Natural Resources Defense Council
NRHP National Register of Historic Places
NRI National Resources Inventory
NRVMA National Roadside Vegetative Management Association
NS Non-Regulatory Supplement
NSF National Science Foundation
NSIS National Safety Information Systems
NSPE National Society of Professional Engineers
NTCIP National Transportation Communications
for ITS Protocol
NTI National Transit Institute
National Toxics Inventory
NTIS National Technical Information Service
NTN National Truck Network
NTP Notice To Proceed,
National Transportation Policy,
National Toxicology Program
NTPAW National Transportation Public Affairs Workshop
NTR New Technology and Research
NTSB National Transportation Safety Board
NTU Nephelelometric Turbidity Units
NURP Nationwide Urban Runoff Program
NWI National Wetland Inventory
NWP Nation Wide Permit (Section 404)
OA Obligation Authority (Federal, $/year)
OAQPS Office of Air Quality Planning and Standards, U.S. EPA
OBM Office of Business Management
OBS Organization Breakdown Structure
OBRA90 Omnibus Budget Reconciliation Act of 1990
OC Over-crossing
OCP Office of Community Planning
OCTA Orange County Transportation Authority
O&D survey Origin and Destination
O&M Operation and Maintenance
OE Office Engineer, Operating Expense
OEA Office of External Audits,
Office of Energy Assessments,
Office of Environmental Analysis
OECA Office of Enforcement and Compliance Assurance (U.S. EPA)
OEM Original Equipment Manufacturer
OES Office of Emergency Services
OFCCP Office of Federal Contract Compliance Programs
OGAC Open Graded Asphalt Concrete
OGAC(R) Open Graded Asphalt Concrete (Rubberized)
OH Overhead
OHP Office of Historic Preservation (Cal.)
OHWM Ordinary High Water Mark
OIG Office of the Inspector General
OIP Order of Immediate Possession
OJT/SS On the Job Training/Supportive Services
OLP Office of Local Programs, @ HQ;
admin of Fed. Aid & Local Assist. Now DOLA
OJT On-the-job training
OMB Office of Management and Budget
OPA Other Principal Arterial
OPEC Organization of Petroleum Exporting Countries
OPO Office of Personnel Operations
OPPD Office of Project Planning and Design
OPPTS Office of Prevention, Pesticides,
and Toxic Substances (U.S. EPA)
OPR Office of Planning and Research (governor’s)
ORC Organizational Review Committee
ORCP Oval Reinforced Concrete Pipe
OREA Office of Real Estate Appraisers
OSC Office of Structure Construction
OSHA Occupational Safety and Health Administration (U.S.)
OSI Open Systems Interconnection (ITS)
OSM&I Office of Structures and Maintenance Inspection
O3 Ozone
OST Office of the Secretary of Transportation;
Out of State Travel
OT Overtime
OTI Office of Traffic Improvement
OTP Operational Test Plan (ITS)
OTS Office of Traffic Safety
OWM Office of Wastewater Management (EPA)
OWP Overall Work Plan or Program
P2 Pollution Prevention
P3 Primavera Project Planner (software)
P4 Pollution Prevention Permitting Project
P&P Policy and Procedure Directive
P&R Park-and-Ride
PABS Programming and Budgeting System
PAC Policy Advisory Committee
PACT Program Accountability in Caltrans
PADP Ports Access Demonstration Project
PA&ED Project Approval & Environmental Document
PAI Principal Arterial – Interstate
PAMS Photochemical Assessment Monitoring Stations
PA/SI Preliminary Assessment / Site Investigation
PAP Perforated aluminum pipe
PAQSD Primary Air Quality Standards
PAR Personnel Action Request,
Project Authorization Request,
Project Approval Report
PARF Position Action Request Form
PASSER II Progression Analysis and Signal System Evaluation Routine
PATH Partners for Advanced Transportation
and Highways
PAYT Pay As You Throw
PB Paint binder; Pull Box
Pb Lead
PBA Performance Based Asphalt
PBDEs polybrominated diphenyl ethers (see BFRs)
PBMS Performance Based Measurements Systems
PBO Programmatic Biological Opinion
PBX Private Branch Exchange
PC Program Coordinator; Prime Coat; Party Chief; Personal Computer
PCA Portland Cement Association
PCBs Polychlorinated Biphenyls
PCC Point of compound curvature;
Portland Cement Concrete
PCCP Portland Cement Concrete Pavement, Pre-stressed Concrete Cylinder Pipe
PCE Programmatic Categorical Exclusion (NEPA),
PCEPH Passenger Car Equivalents Per Hour
PCI Paint Condition Index; Precast/Prestressed Concrete Institute
PCi/L Pico Curies per Liter (water qual., radioactivity)
PCP Primary Care Physician
PCS Personal Communications System
PCSD President’s Council on Sustainable Development
PCR Project Change Request
PCS Project Control Survey;
Permit Compliance System
PCVC Point of compound vertical curve
PD Project Development
PDA Personal Digital Assistant
PDF Portable Document Format –
Adobe Acrobat stuff
PDH Professional Development Hour
PDM Probabilistic Dilution Model ;
Precedence Diagramming Method
PDO Property Damage Only
PDPM Project Development Procedures Manual
PDRC Pavement Design and Rehabilitation Committee
PDS Project Development Support
PDT Project Development Team
PE Preliminary Engineering, Polyethylene, Professional Engineer, Project Engineer
PEAR Preliminary Environmental Assessment Report
PECG Professional Engineers in California Government
PEDP Professional Engineer Development Program
PEER Permit Engineering Evaluation Report
PeMS Performance Measurement System
PERMIS Personnel Employee Records for the Management Information System
Permit 106 Review process for the National Historic Preservation Act
Permit 1601 A streambed alteration agreement for U.S. Department of Fish & Game
Permit 4(f) Use of parkland Permit
404 Permit issued by the U.S. Army Corps of Engineers
Permit 7 Pertains to the Endangered Species Act
PERS Public Employees Retirement System
PERT Project Evaluation and Review Technique
PES Preliminary Environmental Study
PET Project Estimating Tool
PF Planned Finish Date, Pay Factor
PFCs Perfluorinated Carbons
PFT Permanent Full Time
PG&E Pacific Gas and Electric
PHG Public Health Goal (water qual) set by CEPA
PHS U.S. Public Health Service
PI Permanent Intermittent
PIA Project ITS Architecture
PIAS Personal Information Access Subsystem (ITS)
PKm Post Kilometer
PLH Public Land Highway (Fed program)
PI Permanent Intermittent
(Civil Service Appointment),
preliminary investigation,
Point of Intersection
PIB Personnel Information Bulletin
PIC Private Industry Council
PID Project Initiation Document
PIER Post-Implementation Evaluation Report
PIMS Personnel Information Management System
PIN Personal Identification Number,
Priority Index Number
(for barrier rail replacement projects)
PIO Public Information Officer
PIP Payroll Input Process, Project Initiation Proposal
PISA Project Information System & Analysis,
or Administration
PK Parker-Kalan Nail
P/L Property line
PLA Project Labor Agreement
PLP Personal Leave Program
PLUM Projected Land Use Model
PM Project Manager; Post Mile;
Preventive Maintenance; Particulate Matter
PMBOK Project Management Body of Knowledge
PMCS Project Management Control System
PMDW Project Management Data Warehouse
PMI Project Management Institute
PMP Perforated Metal Pipe;
Project Management Professional
PMPM Project Management Procedures Manual
PMR Position Management Report
PMS Pavement Management System;
Parking Management System (ITS)
PMSU Project Management Support Unit
PM-10 Particulate Matter 10 microns or smaller
PN Paving Notch
PO Purchase Order
POC Pedestrian Over-Crossing;
Point on (horizontal) curve
POE Port of Entry
POGO Privately-Owned/ Government-Operated
PONTIS AASHTO supported bridge management program Polycyclic Organic Matter
POP Post Office Protocol
POP Purpose of Project
POS Point Of Service health plan
POT Point on tangent
POVC Point on vertical curve
P&P Policy & Procedure
ppb Parts Per Billion
PPC Plastic Pipe Culvert
PPDG Project Planning and Design Guide
PPE personal protective equipment
PPIC Public Policy Institute of California
PPM Planning, Programming & Monitoring,
Policy and Procedures Memorandum
ppm Parts Per Million
PPNO Planning and Programming Number
PPO Preferred Provider Organization
PPT Permanent-Part Time (Employee)
ppt part per trillion
PQS Professionally Qualified Staff
PR Project Report
P&R Park and Ride
PRC Point of Reversing Curve
Prop 116 State bicycle program
PRF Pavement Reinforcing Fabric
PRISM Performance and Registration Information System Management (not PRSM)
PR2/2A Fed/State supplemental agreement and modification to agreement (being phased out)
PRS Performance Related Specifications
PRSM Project Resources and Schedule Management
(not PRISM)
PRVC point of reverse vertical curve
PS Planned Start Date
PSA Program Supplemental Agreement;
Precursor System Architecture (ITS)
PSCS Project Schedule and Control System
PSDP Planning Staff Development Program
PSI Preliminary Site Investigation;
pounds per square inch
Pollutant Standards Index
psig Pressure Per Square Inch Gauge
PSM Point Source Monitoring
PSP Pedestrian Safety Program;
perforated steel pipe
PSR Project Study Report for STIP projects, preprogramming information.
PSS Personnel Services Specialist
PSSR Project Scoping Summary Report
for SHOPP projects
PSTIP Proposed State Transportation Improvement Program
PSTN Public Switched Telephone Network
PTA Public Transportation Account;
the major State account for mass transportation
PTMS Public Transportation Management System
PTMISEA Public Transportation Modernization, Improvement, and Service Enhancement Account
P2P TCD Peer-to-Peer program on Traffic Control Devices (FHWA)
PTS Positive Train Separation (ITS)
PUC Public Utilities Commission
PVC Polyvinyl Chloride
PVEA Petroleum Violation Escrow Account
PY Person – Year (1758-1800 hours)
PYE Person Year Equivalent
PYPSCAN Person Year Project Scheduling & Cost Analysis
QAP Quality Assurance Program, Qualification Appraisal Panel
QA/QC Quality Assurance/ Quality Control
QBS Qualification Based Selection
QCIP Quality and Continuous Improvement Program
QCRP Quality Control Review Process
QIP Quality Improvement Plan
QoS Quality of Service
RA Reasonable Alternative; Regulatory Alternatives; Regulatory Analysis; Remedial Action;
Resource Allocation; Risk Analysis;
Risk Assessment
RABA Revenue Aligned Budget Authority, annual funding adjustment highway program to firewall level reflecting receipt estimates.
RAC Rubberized Asphalt Concrete
Research Advisory Committee
RACM Reasonable Available Control Measures
(air qual.)
RAD Rapid Application Development,
Radiation Adsorbed Dose
RAM Responsibility Assignment Matrix
RAN Revenue Anticipation Note
RAO Regional Administrative Officer
RAP Relocation Assistance Program or Payments; Reclaimed Asphalt Pavement
RAPID Rural Agency Project Implementation District
RAQS Regional Air Quality Strategy
RAS Regional Arterial System
RAW Revenue Anticipation Warrant (“bridge” loan)
RBS Resource Breakdown Structure
RCA Recycled Concrete Aggregate
RCM Reliability Centered Maintenance
RCP Reinforced Concrete Pipe
RCR Route Concept Report, part of planning process which provides a service concept
RCRA Resource Conservation and Recovery Act
R&D Remove & Dispose
RDO Regular Day Off
RDP Route Development Plan, part of planning process which provides alternatives
RDNA Recombinant DNA
RDS Radio Data Systems (ITS)
R&S Remove & Salvage
RE Resident Engineer
REMOVE Reduced Motor Vehicle Emissions Program
REVISIT RBS Evaluation, Verification, Integration & Support Improvement Team
RFA Request for Authorization
RFB Request for Bid
RFG Reformulated Gasoline
RFP Request for Proposal
RFQ Request for Qualifications Request for Quotation
RFS Richmond Field Station (UCB)
RIA Regulatory Impact Analysis;
Regional ITS Architecture
RICO Racketeer Influenced and Corrupt Organizations Act
RIFA Red Imported Fire Ant
RIP Regional Improvement Plan
RLF Red Legged Frog
RM risk management
RMP Regional Mobility Plan
RNA Ribonucleic Acid
ROD Record of Decision
ROE Report of Expenditures
ROG Reactive Organic Gases
RRC Rural Residential Center
RRR Resurfacing (overlay), Restoration (to original condition), Rehabilitation (upgrade guardrail, widen shoulders, etc.)
R/S Resource / Schedule
RSP Roadway Safety Program (ATSSA)
RSPA Research and Special Programs Admin.
RSTP Regional Surface Transportation Program
RTIF Regional Transportation Impact Fee
RTIP Regional Transportation Improvement Program, 75% of STIP funds. List of projects submitted to CTC by RTPAs for seven year horizon, updated every two years.
RTL Ready To List
RTP Regional Transportation Plan,
Federally required 20-year plan by MPO’s, updated every 3-years
RTPA Regional Transportation Planning Agency,
State designated agency responsible for prep. of RTP & RTIP
RTS Remote Traveler Support Subsystem (ITS)
RSTP Regional Surface Transportation Program
RWQCB Regional Water Quality Control Board
SAAMP Special Area Aquatic Management Plan
SAB Seismic Advisory Board
SACOG Sacramento Area Council of Governments
SADBU Small And Disadvantaged Business Utilization
SAE Society of Automotive Engineers
SAFEs Service Authorities for Freeway Emergencies
SAFETEA Safe, Accountable, Flexible and Efficient Transportation Equity Act of 2003
SAIN Substance Abuse Information Network
SAM State Administrative Manual
SAME Society of American Military Engineers
SAMI Stress-Absorbing Membrane Interlayer
SANBAG San Bernardino Associated Governments
SANDAG San Diego Association of Governments
SAP Sampling and Analysis Plan
SAPA State Asphalt Paving Associations
SAVE Society of American Value Engineers
SB Senate Bill
SBB&M San Bernardino Base and Meridian (surveying)
SB45 1997; State increased authority of RTPA’s, etc. Est. current STIP process; timely use
SBS Sick Building Syndrome
SC Slow Curing; Start Construction
SCADA Supervisory Control and Data Acquisitions
SCAG Southern California Association of Governments
SCANDI Surveillance Control and Driver Information System
SCBT segmental concrete bridge technology
SCC self-consolidating concrete (use of plasticizers)
SCE Southern California Edison
SCEDCO Stanislaus County Economic Development Corporation
SCFM Standard Cubic Feet Per Minute
SCH State Clearing House
SCO State Controllers Office
SCOH Standing Committee on Highways
SCR State Controller’s Report
SCS Soil Conservation Service (now NRCS)
SCSP Storm and Combined Sewer Program
SD Structurally Deficient (bridge),
Standard Deviation
SDC Seismic Design Criteria
SDO Standards Development Organization
SDP Strategic Deployment Plan
SDWA Safe Drinking Water Act
SEA Systems Engineering Analysis
SEAC Sulfur Extended Asphalt Concrete
SEC U.S. Securities and Exchange Commission
SEP Special Emphasis Program
Special Experimental Project; (ex.: FHWA allowed states to evaluate the design-build method on an experimental basis through SEP-14.
Section 4(f) USDOT Act of 1966, Protects publicly owned parks, recreational areas, wildlife and water fowl refuges and land from historic sites
Section 7 Of Endangered Species Act of 1973
Section 9 Prohibited Acts
Section 10 Habitat Conservation Plans
Section 106 National Historic Preservation Act of 1966. Protection of cultural resources and historic properties.
Section 130 Railroad / Highway At-Grade Crossings
Safety Program
Section 404 of the 1977 Federal Clean Water Act
SER Standard Environmental Reference
SF Scheduled Finish Date / Start-to-Finish;
Standard Form; Superfund
SFOBB San Francisco-Oakland Bay Bridge
SFP Single Focal Point
S&H Code Streets & Highways Code – laws governing funding & development of projects
SHA State Highway Account; Major account for highways (gas tax & weight fees)
State Highway Agency
SHBSB State Historic Building Safety Board
SHELL Subsystem of Highways for the Movement of Extralegal Permit Loads
SHOPP State Highway Operation and Protection Program, four & ten-year capital improvement program for rehabilitation, safety, and operational improvements on state highways.
Cannot increase roadway capacity. SB 1435-Kopp
SHRP State Highway Research Program
SHS State Highway System
SHPO State Historic Preservation Officer
SHRC State Historical Resources Commission
SHWL Seasonal High Water Level
SI International System of Units
(The Modernized Metric System)
SI&A Structure Inventory and Appraisal
SIB State Infrastructure Bank
SIC Standard Industrial Classification,
Standard Industry Code
SIG Special Interest Group
SIGOP Signal Optimization
SIMS Sign Inventory Management System
SIP State Implementation Plan; air qual. Required by Fed, CAA of 1970. In order to be eligible for Fed $ projects must demonstrate conformity to SIP.
SISA Special In-grade Salary Adjustment
SJCOG San Joaquin Council of Government
SJHTC San Joaquin Hills Transportation Corridor
SJVAPCD San Joaquin Valley Air Pollution Control District
SLA Structures Local Assistance, Simbionese Liberation Army
(different people, same acronym)
SLAE Structure Local Assistance Engineer
SLAMS State and Local Air Monitoring Stations
SLC State Land Commission
SLD Sea Level Datum
SLIP Serial Line Internet Protocol
SLPDP State and Local Project Development Program
SLTC Soluble Threshold Limit Concentration (Cal)
SLTPP State Local Transportation Partnership Program State, discontinued)
SMARA Surface Mining and Reclamation Act (Calif.)
SMART Structure Maintenance Automatic Report Transmittal system
Goals: Specific, Measurable, Achievable, Realistic, Time limited.
SMBB single metal beam barrier
SMR Specialized Mobile Radio
SMS Highway Safety Management System
SMSA Standard Metropolitan Statistical Area
SMTP Simple Mail Transfer Protocol
SNAFU Situation Normal All Fouled Up (polite form)
SNAP Sonic Nap Alert Pattern
(Penn. Turnpike type rumble strip)
SNC Significant Noncompliance
SNMP Simple Network Management Protocol (ITS)
SO Sulfur Dioxide
SOAP Signal Operations Analysis Package
SOC Synthetic Organic Chemicals
SOF State Only Funding
SOFC solid oxide fuel cell, see APU
SONET Synchronous Optical Network (ITS)
SOQ Statement of Qualifications
SOV Single Occupancy Vehicle
SOW Statement of Work
SO2 Sulfur Dioxide
SOx Sulfur Oxides
SPB State Personnel Board
SPE Start Preliminary Engineering
SPI Schedule Performance Index
SP&R State Planning & Research
SR2S Safe Routes to School program
(Fed) (est. by AB 1475, ext. by SB 10)
SPB State Personnel Board
SPMIT Statewide Project Management Improvement Team
SPRR Southern Pacific Railroad
SQL Standard Query Language
SR Sufficiency Rating (bridge) or State Route
SRF State Revolving (Loan) Fund (Clean Water Act)
SROA State Restriction of Appointments
SRP Secondary Road Plans
SRT Slotted Rail Terminal
SRTP Short Range Transit Plans
SS Scheduled Start Date / Start-to-Start
SSE Separate State Estimate
SSA Sole Source Aquifer
SSB Scope, Schedule, and Budget
ssambn such sums as may be necessary
SSN Social Security Number
SSES Sewer System Evaluation Survey
SSO Sanitary Sewer Overflow
SSPP Structural Steel Plate Pipe
SSPs Standard Special Provisions
SSR Standard Speed Rail
SSTAC Social Service Transportation Advisory Council
STA State Transit Assistance; State funding for mass transit oper. & cap. Imp.,
By law, STA must receive 50% of PTA revenues
STA State Transportation Agency
STAA Surface Transportation Assistance Act of 1982
STANCOG Stanislaus Council of Governments
STAPPA State And Territorial Air Pollution Program Administrators
STBB Single Thrie Beam Barrier
STC State Training Center
STD Sate Transportation Department
STE State Transportation Enhancement
STEL short-term exposure limit
STIP State Transportation Improvement Program,
4-year list of projects approved by CTC and is a list of major projects.
ITIP (25%) & RTIP (75%)
STA State Transit Assistance (fund)
STC State Training Center
STMF Simple Transportation Management Framework (ITS)
STMP Simple Transportation Management Protocol (ITS)
STO Smart Testing Operations
STP Surface Transportation Program (Fed)
(Formerly FAU or FAS)
Study; Standard Temperature and Pressure
STPP Surface Transportation Policy Project
STPL Surface Transportation Program (Local)
STRAHNET STRAtegic Highways NETwork
STRUDL Structural Design Language (computer program)
STURAA Surface Transportation and Uniform Relocation Assistance Act (1987)
SU Source Unit
SUDP Specific Urban Development Plan
SULEV super ultra low emission vehicles
Superpave Superior PERforming asphalt PAVEments
SUSMP Standard Urban Stormwater Mitigation Plan
SV Schedule Variance
SW Sidewalk Storm Water
SWAG Stuff We All Get
Scientific Wild Ass Guess
(not CT. We don’t guess, we know)
SWDR Storm Water Data Report
SWITRS Statewide Integrated Traffic Records System
SWLF Solid Waste Landfill
SWMP Storm Water Management Plan
SWMU Solid Waste Management Unit
SWPPP Storm Water Pollution Prevention Plan
SWQAG Storm Water Quality Assessment Guide
SWRCB State Water Resources Control Board
SWTF Storm Water Task Force
SYSOP Systems Operator
T2 Technology Transfer
TA Technical Advisory
TAC Technical Advisory Committee
TAC/ALC Technical Advisory Committee for Agricultural Land Conservation
TAG Technical Advisory Group
TAM Transportation Asset Management
(FHWA, resource allocation strategies)
TAS Toll Administration Subsystem
TAR Tribal Authority Rule
TASAS Traffic Accident Surveillance and Analysis System
TAT Tire Anchor Timber Wall
TAU Temporary Authorization Appointment
TB Top of Bank
TBB Thrie beam barrier
TBC Top Back of Curb
TC Top of Curb
TCA Transportation Corridor Agency
TCAG Tulare County Association of Governments
TCAT Tulare County Area Transit
TCB Traffic Control Box
TCCC Transportation Curriculum Coordination Council
(FHWA led pooled fund study for training management and development under NHI)
TCDD Dioxin (Tetrachlorodibenzo-p-dioxin)
TCDH Traffic Control Devices Handbook
TCE Trichloroethylene
TCI Transit Capital Improvement program
TCIP Transit Communications Interface Profiles (ITS)
TCLP Toxicity Characteristic Leaching Procedure (Fed)
TCM Transportation Control Measure
– to reduce pollution emissions.
TCP Traffic Control Plan
TCP/IP Transmission Control Protocol/Internet Protocol
TCR Transportation Concept Report;
Transportation Corridor Report
TCRA Traffic Congestion Relief Act (AB2928)
TCRF Traffic Congestion Relief Fund
TCRP Transportation Congestion Relief Program, Transit Cooperative Research Program
TCS Transportation Control Strategy,
Traffic Controller Synchronizer,
Traffic Control Systems, Transportation Corridor Study
Toll Collection Subsystem
T&D Training and Development
TDA Transportation Development Act; State law, 1971, 0.25% sales tax for transit & bike
TDD Telecommunications Device for the Deaf
TDIP Technology Deployment Initiatives and Partnerships
TDM Transportation Demand Management;
Travel Demand Management
TDMA Time Division Multiple Access (ITS)
TDP Transportation Development Plan
(Formerly RDP),
Tons Per Day (air qual.)
TDT Transportation Data Template
TDS Total Dissolved Solids
TE Transportation Engineer
T&E Threatened and Endangered (species)
TEA Transportation Enhancement Act
or Activities program (Fed)
TEAM Together Everybody Achieves More (not CT)
TEC Travel Expense Claim; Total Escalated Cost
TEA-21 Transportation Equity Act for the 21st Century (Fed); 1998-2004
TeNS Technical Noise Supplement (
TERO Tribal Employment Rights Office or Ordinances
TF Total Float / Target Finish Date
TFHRC Turner-Fairbank Highway Research Center (McLean, VA)
THC Total Hydrocarbons
THM Trihalomethanes
TI Traffic Index, = 9.0(ESAL/1,000,000)^0.119; Temporary Intermittent
TIC Technical Information Center
TID Turlock Irrigation District
TIE Toxicity Identification Evaluation
TIES Total Integrated Engineering System
TIF Transportation Investment Fund;
Truck Inspection Facility
TIFIA Transportation Infrastructure Finance
& Innovation Act
TIGER Topologically Integrated Geographic Encoding Referencing System
TIP Transportation Improvement Program
TIS Travelers Information System
TIME Tulare Intermodal Express (Tulare Transit)
TISE Take It Somewhere Else
TISP The Infrastructure Security Partnership
(Congress of Infrastructure Security for the Built Environment)
T&L Time and Labor
TL Transportation Laboratory
TLI Terrain Line Interpolation
TLV Threshold Limit Value
TMA Transportation Management Assoc. or Area
TMC Transportation Management Center; Traffic Management Center
TMCC Truck-Mounted Crash Cushion
TMDD Traffic Management Data Dictionary (ITS)
TMDL Total Maximum Daily Load; ….Limit
TMIP Travel Model Improvement Program
TMP Transportation Management Plan
TMS Traffic Management (or Monitoring or Maintenance) System or Subsystem, see TSM
TNT Trinitrotoluene
TOC Traffic Operations Center;
Total Organic Carbon/ Compound, Section 4(f)
TOD Transit Oriented Development
TOMIS Traffic Operations Management Information Service
TON Threshold of Odor Number (water qual)
TOPICS Traffic Operations Program to Improve
Capacity & Safety
TOPSS Transportation Operations and Project Support System (New time system)
TOS Traffic Operations System
TOT/MVM Total Accidents Per Million Vehicle Miles
TP Turning Point (surveying)
TPB Treated Permeable Base
TPC Technical Planning Committee
TP&D Transportation Planning & Development account
TPL Truck Passing Lane
TPM Transportation Planning Manual
TQM Total Quality Management
TRAMS Transportation Accounting & Management System: developed to meet the Department’s reporting needs and to respond effectively to the requirements placed on the Department as a result of the implementation of the California Fiscal Information System.
TRAQ Transportation Air Quality Center
TRARR Traffic on Rural Roads
TRB Transportation Research Board
(formerly Highway Research Board)
TRIP The Road Information Program
TRIS Transportation Research Information System (UCB), see C-TRIS
TRIS Transportation Research Information System; Toxic Release Inventory System
TRMC Transit Management Center
TRMS Transit Management Subsystem
TRRL Transportation Road Research Laboratory
TRS Time Reporting System (history)
TRSP Traffic-Responsive Plan (Generation)
TRT Technical Review Team
Transportation Research Thesaurus
TRVS Transit Vehicle Subsystem (ITS)
TSC Transportation Systems Center
TSCA Toxic Substances Control Act
TSDP Transportation System Development Plan
TSDF Treatment, Storage and Disposal Facilities
TSIP Transportation Systems Information Program
TSM Transportation System Management program (State, discontinued) See TMS
TSN Transportation System Network
TSO Time-share operation
TSP Total Suspended Particulates,
Traffic Synchronization Projects
TSS Total Suspended Solids
TSSDRA Transit System Safety, Security and Disaster Response Account
TSSS Total Station Survey System
TTHM Total Trihalomethane
TTLC Total Threshold Limit Concentration
TTIA Technology Transfer Improvements Act of 1995
TTN Technology Transfer Network
TTP Technology Transfer Program (UCB)
TTY Teletype
TUF date Timely Utilization of Funding?
TVA Tennessee Valley Authority
TVOC Total Volatile Organic Compounds
TWLTL Two Way Left Turn Lane
UA Urbanized Area
UAA Use Attainability Analysis (water qual)
UAM Urban Air-shed Model
UAQI Uniform Air Quality Index
UART Universal Asynchronous Transmitter Receivers (Computer Chip)
UC Under-crossing
UCITS University of California Institute of Transportation Studies
UCP Unified Certification Program (DBE)
UCS Unconfined Compressive Strength
UFAS Uniform Federal Accessibility Standards
UG Underground
UGB Urban Growth Boundaries
UHPC Ultra High Performance Concrete
UIT ultrasonic impact treatment, for welds
UITP International Union of Public Transport
ULEV Ultra Low Emission Vehicles
UMRA Un-funded Mandates Reform Act
UMTA Urban Mass Transit Agency, ……Administration
UNESCO United Nations Educational, Scientific and Cultural Organization
UNPARs Unprogram Project Approval Requests
UP Underpass
URISA Urban and Regional Information Systems Assoc.
URL Universal Resource Locator; Universal Reader Language
UROAD Urban Mass Transportation Agency
USA United States of America; Underground Service Alert
USC United States Code; Unified Soil Classification
USC&GS United States Coast and Geodetic Survey
USCE United States Corps of Engineers (ARMY)
USCG United States Coast Guard
USDA U.S. Department of Agriculture
USFS U.S. Forest Service
USFWS United States Fish & Wildlife Service
USGS United States Geological Survey
USM Urban Simulation Model
USPLS United States Public Land Surveys
USPS US Postal Service
USR User Service Requirement
UST Underground Storage Tank
USTIP Updated State Transportation Improvement Program
USTR Unites States Trade Representative
UTC Ultimate Transportation Corridor
UTCS Urban Traffic Control System
UTPS Urban Transportation Planning System
UUA use attainability analysis,
(EPA, water body recreational use.)
UV Ultraviolet
UZA Urbanized Area
VA Veterans Administration Value Analysis
VC Vertical Curve
V/C Volume /Capacity ratio
VCM Vertical Control Monumentation
VDT Video Display Terminal
VE Value Engineering
VECP Value Engineering Change Proposal
VELB Valley Elderberry Longhorn Beetle
(lives in stems > one inch)
VEP Value Engineering Proposal
VFC Vehicle Fuel Consumption
VGA Virtual Graphics Array
VHT Vehicle-Hours of Travel
VISTA Video Information System Training Assoc., Inc.
VKT Vehicle Kilometers Traveled
VMS Variable Message Sign
VMT Vehicle Miles Traveled,
common measurement for driving demand
VOC Volatile Organic Compounds;
Volume and Occupancy Control (Constant)
VOS Vehicle Operating Survey
VRC Vehicle/Roadside Communications (ITS)
WADS Wide Area Detection Systems
WAN Wide Area Network
WASHTO Western Association of State Highway & Transportation Officials
WBE Woman-owned Business Enterprise
WBS Work Breakdown Structure
WC Worker’s Compensation
WCC Work Category Code
WCT Woodlake City Transit
WDT Weight-Distance Tax
WEN Workload Estimating Norm
WES Waterways Experiment Station
WET Wetland Evaluation Technique
WGRA Western Governmental Research Association
WHO World Health Organization / United Nations
WIB Workforce Investment Board
WPA watershed protection approach
WPCM Water Pollution Control Manager
WPCP Water Pollution Control Program
WQBEL water quality-based effluent limit
WQC Water Quality Criteria
WQI Watershed Quality Index
WQS water quality standard
WS White Stripe
WSP Welded Steel Pipe
WSRA Wild and Scenic Rivers Act
WSPRO Water Surface Profile
WSTP Wastewater Sewage Treatment Plant
WWBE White Women-owned Business Enterprise
WWTP Wastewater Treatment Plant
WWW World-Wide Web
WYSIWYG What you see is what you get
WZS Work Zone Safety
WZTC Work Zone Traffic Control
XPM Expert Project Management
YARTS Yosemite Area Regional Transportation System
YATI Yosemite Area Traveler Information
YS Yellow Stripe
Y2K The Year 2000 Computer Problem
ZBB Zero Based Budgeting : process requiring justification of every dollar (and person-year) of an organization’s/program’s proposed budget for the budget year. The assumed program level for the budget year is zero, thus intensive justification and critical review of all components is required before approval
ZEV Zero Emissions Vehicle
ZRL Zero Risk Level