1000 Friends of Florida

Dictionary of Transportation Acronyms

Dictionary of Florida Transportation Acronyms
Help for the Acronym Disadvantaged

We do not claim that this dictionary contains all of the possible acronyms. If as they say there is a fool born every minute, there is a acronym born every second! We have taken our best shot at compiling the most common terms. If we have missed some, please let us know. Send any changes to amagee@1000fof.org. By keeping this dictionary current, we will all be able to continue to break the Code.


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AAA American Automobile Association: A nonprofit federation of 116 motor clubs providing travel, insurance, financial and auto-related services; publishes various reports on issues such as fuel prices, motoring and travel conditions, and automobile expenses.

AADT Annual Average Daily Traffic: Daily traffic that is averaged over a year (see ADT).

AASHTO American Association of State Highway and Transportation Officials: National group of transportation agencies whose focus is to study issues and develop policies and standards related to all aspects of transportation.

ADA Americans with Disabilities Act of 1990: A federal law that requires public facilities (including transportation services) to be accessible to persons with disabilities, including those with mental disabilities, temporary disabilities, and the conditions related to substance abuse.

ADT Average Daily Traffic: The number of vehicles passing a fixed point in a day, averaged
over a number of days. The number of count days included in the average varies with the intended use of the data.

ANPRM Advanced Notice of Proposed Rulemaking: A tool used by the federal government to solicit public input into the development of a proposed regulation; notice usually published in the Federal Register.

APA American Planning Association: National organization of professional planners; focus includes planning policy, lobbying and public information. ART-PLAN Arterial Level of Service Software: A computer software program which is used to evaluate the level of service (LOS) for a segment of arterial roadway with given traffic volumes, signal settings and number of lanes. ART-TAB (see next entry) yields more generalized results than ART-PLAN, while highway capacity software (HCS) yields more specific answers.

ART-TAB Spreadsheet model for arterial level of service (LOS) analysis: Generalized LOS analysis tool. Yields quick answers and inexpensive results due to low cost input data. Often used as a screening or first cut LOS call followed by a more refined ART-PLAN or HCS analysis.

ASCE American Society of Civil Engineers

ASP Agency Strategic Plan: A document which identifies goals and objectives that an individual
state agency will be focusing on over the next five years; adopted annually by individual state agencies in Florida.

AVO Average Vehicle Occupancy: The ratio of person trips to vehicle trips; often used as a criterion in judging the success of trip reduction programs.

AVR Average Vehicle Ridership: The number of employees scheduled to start work during specified hours divided by the number of vehicles arriving at the site during those same hours.

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BMS Bridges Management System: Process for analyzing existing conditions and identifying future needs with respect to bridges; required for the National Highway System (NHS) as a part of ISTEA; the extent to which the remaining public bridges are included in the process is left to the discretion of state and local officials; Flordia Department of Transportation (FDOT) must develop the process by October 1, 1998. C Traffic Signal Cycle Length: Length of time (in seconds) for a traffic signal to cycle through a complete sequence of signal indications.

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3-C process Continuing, Cooperative, Comprehensive: Generally used to define qualities of the metropolitan planning organization (MPO) planning process.

CAAA Clean Air Act Amendments: 1990 amendments to the federal Clean Air Act which classify nonattainment areas and lay out rules for dealing with air pollution in such areas;
specifically brought transportation decisions into the context of air quality control.

CAC Citizen Advisory Committee: Advisory committee utilized by most metropolitan planning organizations (MPOs) for citizen input into the transportation planning process.

CAFE Corporate Average Fuel Economy Standards: Federal fuel efficiency standards for automobiles.

CAP Commuter Assistance Program: Program funded by the U.S. Department of Transportation (DOT) which supports numerous congestion-reducing programs in a community in order to achieve the community’s traffic reduction and air quality goals.

CBD Central Business District: The area of a community with the most intense commercial and business development.

CFR Code of Federal Regulations: Compilation of the rules of the executive department and agencies of the federal government.

CH. 163 Chapter of the Florida Statutes (F.S.) which requires local governments to develop local comprehensive plans; also contains capital improvements, consistency and concurrency requirements.

CH. 380 Chapter of the Florida Statutes (F.S.) which identifies requirements for the Development of Regional Impact (DRI) program and Areas of Critical State Concern program.

CIE Capital Improvements Element: A required element of local comprehensive plans which evaluates the need for public facilities, their cost and funding/schedule for construction; specific content for the CIE is found in Rule 9J-5.016 of the Florida Administrative Code (F.A.C.) and Chapter 163.3177(3), Florida Statutes.

CMAQ Congestion Mitigation and Air Quality Improvement Program: A new categorical funding program created under ISTEA which directs funding to projects that contribute to meeting national air quality standards in non-attainment areas for ozone and carbon monoxide.

CMS Congestion Management System: A systematic process required under ISTEA to provide information on transportation system performance and identify alternative strategies to alleviate congestion and enhance mobility of persons and goods; process must be developed in Transportation Management Areas (TMAs) and in use by October 1, 1997; the use of CMS in non-TMAs is left to the discretion of state and local officals; in Florida, MPOs will take the lead for the CMS in urbanized areas and FDOT will take the lead elsewhere.

CMS Concurrency Management System: A systematic process utilized by local governments to ensure that new development does not occur unless adequate infrastructure (such as public facilities) is in place to support growth; requirements for the CMS are found in Rule 9J-5.0055, Florida Administrative Code (F.A.C.).

CTCs Community Transportation Coordinators: People contracted by the Transportation Disadvantaged Commission to provide complete, cost-effective and efficient transportation
services to transportation disadvantaged (TD) persons.

CUTR Center for Urban Transportation Research: A legislatively created research center, located at the University of South Florida, whose purpose is to conduct and facilitate research and serve as an information exchange on issues related to urban transportation problems in Florida.

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DCA Department of Community Affairs: State land planning agency responsible for a number of programs, including Chapters 163 and 380 of the Florida Statutes (F.S.).

DEP Florida Department of Environmental Protection: State agency responsible for the implementation of most of Florida’s environmental regulations, including air monitoring and assessment; formerly the Departments of Natural Resources and Environmental Regulation.

DHSMV Department of Highway Safety and Motor Vehicles: State agency responsible for highway patrol, licenses, title and registration functions.

DOT Department of Transportation: Agency responsible for transportation at the local, state or federal level.

DRI Development of Regional Impact: A large-scale development which is required to undergo an extra-local review process; the appropriate regional planning council coordinates the review; the appropriate local government makes the approval decision, with the Florida Department of Community Affairs (DCA) retaining appeal authority; Rule 28-24, F.A.C. identifies types of development subject to DRI review.

DVMT Daily Vehicle Miles of Travel: The total miles traveled by all vehicles in a specific area
over a 24-hour period; often used to compare changes in travel patterns over time. EA Environmental Assessment: A study used to determine if a full environmental impact statement (EIS) is required for a project; documents the need for the project, the alternatives considered, the preferred alternative and the impacts of the proposed project.

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EAR Evaluation and Appraisal Report: Periodic review and evaluation of a local government comprehensive plan; generally due every five years; requirements for contents are identified in Rule 9J-5.0053, Florida Administrative Code (F.A.C.) and Chapter 163.3191, Florida Statutes (F.S.).

ECO Employee Commute Options: Programs required by the Clean Air Act Amendments (CAAA) which require employers with 100 or more employees (with 33 employees arriving
during peak period) to reduce the number of trips to the work site.

EDMS Emission Dispersion Modeling System: A computer software program used to analyze air quality at airports.

EIS Environmental Impact Statement: A comprehensive study of the impacts of and alternatives to proposed projects; required by the National Environmental Policy Act (NEPA)

ELMS Environmental Land Management Study: Study done by a statewide blue ribbon committee which has convened three different times since the early 1970s, with new members
each time; the study provided recommendations to the Governor and Legislature on land and water management issues. 

EMIS Emission Interference Program: A Florida Department of Transportation (FDOT) computer program which allows the results of the transportation planning model (FSUTMS) to be used in an air quality model which determines emission facts for motor vehicles (MOBILE).

EPA Environmental Protection Agency: A federal agency responsible for dealing with national environmental issues.

ETC Employee Transportation Coordinator: A person who helps employees at a particular work site use carpooling, vanpooling and other ridesharing programs.

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FAA Federal Aviation Administration: Federal entity responsible for overseeing air commerce, air traffic control, noise abatement and other related issues.

F.A.C. Florida Administrative Code: Document in which Florida’s administrative regulations are

FAW Florida Administrative Weekly: The publication in Florida where proposed rules, workshops, hearings and final rules are advertised for public notice.

FDOT Florida Department of Transportation: State agency responsible for transportation issues
and planning in Florida.

FHWA Federal Highway Administration: Division of the U.S. Department of Transportation responsible for administrating federal highway transportation programs.

FIHS Florida Intrastate Highway System: A statewide network of limited and controlled access highways whose primary function is for high speed and high volume traffic

FIMAT Florida Institute for Marketing Alternative Transportion: Oraganization located in the
College of Business at Florida State University which uses marketing techniques to influence decisions that people make concerning how they want to travel.

FR Federal Register: The federal publication where proposed rules, workshops, hearings and adopted rules are advertised for public notice.

F.S. Florida Statutes: Documents in which Florida’s laws are found.

FSUTMS Florida Standard Urban Transportation Modeling Structure: Computer model used in Florida for transportation planning to simulate existing and future travel patterns; developed by FDOT for long-range urban area transportation modeling.

FTA Federal Transit Administration: Formerly UMTA; federal entity responsible for transit planning and programs.

FTP Florida Transportation Plan: A statewide, comprehensive transportation plan which establishes long-range goals to be accomplished over a 20-25 year time frame; developed by Florida Department of Transportation (FDOT); updated on an annual basis.

FY Fiscal Year: A budget year; runs from July 1 through June 30 for the state of Florida, and from October 1 through September 30 for the federal government.

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g Effective Green Time: The time (in seconds) within a given traffic signal phase during which
drivers actually proceed through an intersection. (Green time minus starting delay time.)

G Green Time: The time (in seconds) within a given traffic signal phase when the light is green.

g/C g over C ratio: The ratio of the effective green time (g) to the traffic signal’s cycle length (C).

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HCM Highway Capacity Manual: The recognized manual describing accepted methodology for computing the capacity and level-of-service for various types of roads; published by the Transportation Research Board (TRB).

HCS Highway Capacity Software: Computer software for analyzing the capacity of signalized and non-signalized intersections and their level of service.

HOV High Occupancy Vehicle: In Florida, vehicles carrying 2 or more people; freeways, expressways and other large volume roads may have lanes designated for HOV use by carpoolers, vanpools, and buses.

HPMS Highway Performance Monitoring System: The system used by the Federal Highway Administration (FHWA) to provide information on the condition of the nation’s highway system, its use, performance and needs.

HSR High Speed Rail: A railway system which can transport people or goods at speeds in excess of 125 miles per hour; currently being considered in Florida between Miami, Orlando and Tampa.

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ICE Intergovernmental Coordination Element: Required element of a local government comprehensive plan addressing coordination between adjacent local governments, and
regional and state agencies; requirements for content are found in Rule 9J-5.015, F.A.C. and 163.3177(6)(h), F.S.

IJR Interchange Justification Report: Documentation submitted through the Florida Department of Transportation (FDOT) to the Federal Highway Administration (FHWA) to determine if a new interchange on an interstate is allowed.

IMS Intermodal Management System: Systematic process to improve the coordination in planning and implementation of air, water and land-based transportation facilities and services; required for transportation facilities connected to the National Highway System (NHS) as a part of ISTEA; must be in use by October 1, 1997; for non-NHS transportation facilities, the extent of an IMS is left to the discretion of state and local officials.

ISTEA Intermodal Surface Transportation Efficiency Act of 1991: Federal law which restructured transportation planning and funding by requiring consideration of multimodal solutions, emphasis on the movement of people and goods as opposed to traditional
highway investments, flexibility in the use of transportation funds, a greater role of MPOs, and a greater emphasis on public participation.

ITE Institute of Transportation Engineers: An international society of professionals in transportation and traffic engineering; publishes Trip Generation (a manual of trip generation rates by land use type). ITS Intelligent Transportation System: Use of computer and communications technology to facilitate the flow of information between travelers and system operators to improve mobility and transportation productivity, enhance safety, maximize the use of existing transportation facilities, conserve energy resources and reduce adverse environmental effects; includes concepts such as “freeway management systems,” “automated
fare collection” and “transit information kiosks.”

IVHS Intelligent Vehicle/Highway Systems: Technologies that focus on monitoring, guiding or operating motorized vehicles, or providing information to travelers about road and traffic conditions; examples include computerized navigational systems in cars, collision warning systems and freeway ramp metering. JPA Joint Participation Agreement: Legal instrument describing intergovernmental tasks to be accomplished and/or funds to be paid between government agencies. K Design Hour Factor: Used to convert daily traffic counts to hourly traffic counts, and annual average traffic counts to peak season traffic counts; most road are designed for peak hour, peak season traffic counts.

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JPA Joint Participation Agreement: Legal instrument describing intergovernmental tasks to be accomplished and/or funds to be paid between government agencies. K Design Hour Factor: Used to convert daily traffic counts to hourly traffic counts, and annual average traffic counts to peak season traffic counts; most road are designed for peak hour, peak season traffic counts. LDR Land Development Regulations: Local development regulations used to implement comprehensive plans; required by 9J-5.006, F.A.C. and Chapter 163.3177(6)(a), F.S.

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LGCP Local Government Comprehensive Plan: An adopted plan of a municipality or county which describes its future development and growth; required by 9J-5.021, F.A.C. and Chapter 163.3177 and 163.3178 of the Florida Statutes (F.S.)

LOS Level of Service: A qualitative assessment of a road’s operating condition; generally described using a scale of A (little congestion) to E/F (severe congestion).

LRC Long Range Component: The part of the Florida Transportation Plan (FTP) that addresses
a time span of about 20 years; updated at least every five years to reflect changes in the issues, goals and long range objectives.

LRP Long Range Plan: A 20-year forecast plan required of state planning agencies and MPOs; must consider a wide range of social, environmental, energy and economic factors in determining overall regional goals and consider how transportation can best meet these goals.

LRT Light Rail Transit: An electric rail system which has single cars or short trains, and
passengers board at track or car floor level; an example is the Dade Metro Rail system.

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MIS Major Investment Study: A tool to aid decision-making with respect to an identified transportation need; evaluates cost and effectiveness of alternatives; required by ISTEA when a need for a major metropolitan transportation investment (MMTI) is identified and federal funds are potentially involved.

MMP Mobility Management Process: Florida’s congestion management system (CMS).

MMTI Major Metropolitan Transportation Investment: A highway or transit improvement of substantial cost that is expected to have a significant effect on capacity, traffic flow, level of service or mode of service at the transportation corridor or subarea scale.

MOBILE Computer model used to determine motor vehicle emissions (in lbs.) based on emission factors for a given assumed fleet mix of older and newer motor vehicles.

MPA Metropolitan Planning Area: The geographic area within which the metropolitan transportation planning process is carried out.

MPO Metropolitan Planning Organization: The forum for cooperative transportation decision-making; required for urbanized areas with populations over 50,000.

MPOAC Metropolitan Planning Organization Advisory Council: An advisory council (consisting of
one member from each MPO) that serves as the principal forum for collective policy discussion in urban areas; created by law to assist the MPOs in carrying out the urbanized area transportation planning process.

MSA Metropolitan Statistical Area: Refers to a central county(ies), and an adjacent county(ies)
that is closely tied to it, that contains a city or urbanized area with a population of at least 50,000, and has a total population of at least 100,000; boundaries correspond to existing political jurisdictional boundaries; areas are designated by the U.S. Office of Management and Budget; term replaced SMSA after the 1980 census.

MTI Major Transportation Investment: See MMTI.

MTP Metropolitan Transportation Plan: A transportation plan with a twenty year planning horizon; developed by each MPO; must be updated at least triennially in non-attainment areas and every five years in attainment areas; should be cost feasible.

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9J5 Rule 9J-5, F.A.C.: Rule from the Florida Administrative Code which identifies the minimum
criteria for the content of local comprehensive plans; adopted by DCA.

NAA Nonattainment Area: Any geographic area of the U.S. that the Environmental Protection Agency (EPA) has designated as an area which does not meet the National Ambient Air Quality Standard (NAAQS).

NAAQS National Ambient Air Quality Standards: Federal standards that set maximum levels of
allowable concentrations of various air pollutants.

NEPA National Environmental Policy Act: Federal law passed in 1969 which requires an analysis of environmental impacts of federal actions (including the funding of projects).

NHS National Highway System: Specific major roads to be designated by September 30, 1995; the NHS will consist of 155,000 (plus or minus 15%) miles of road and represents one category of roads eligible for federal funds under ISTEA.

NPTS Nationwide Personal Transportation Study: A transportation study, periodically undertaken by the Bureau of Census, which looks at travel patterns and frequency, transit
use, and other travel characteristics at a national level.

NTS National Transportation System: Refers to those elements/facilities from aviation, highways (including the NHS), railroads, ports and waterways, pipelines and public transportation which play an important role in meeting national transportation needs; will be used to provide a policy framework to evaluate impacts and effectiveness of federal laws and regulations, to plan federal infrastructure investments, and to evaluate service levels; currently being developed by the U.S. Department of Transportation (DOT). O-D Survey Origin-Destination Survey: A study which identifies where a selected sample of persons or cars came from (origin) and where they are going (destination); used to help understand travel
patterns and trip purposes.

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O-D Survey Origin-Destination Survey: A study which identifies where a selected sample of persons or cars came from (origin) and where they are going (destination); used to help understand travel patterns and trip purposes. PD&E Project Development and Environment Study: FDOT’s name for a corridor study to establish conceptual design for a roadway and to determine its compliance with federal and state environmental laws and regulations.

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PMS Pavement Management System: A systematic process utilized by state agencies and MPOs to analyze and summarize pavement information for use in selecting and implementing
cost-effective pavement construction, rehabilitation, and maintenance programs; required for roads in the National Highway System (NHS) as a part of ISTEA; the extent to which the remaining public roads are included in the process is left to the discretion of state and local officials; criteria found in 23 CFR 500.201-.209; must be in use by October 1, 1997.

P&RP Program and Resource Plan: A ten year plan that establishes financial and production
targets for transportation programs; guides program and funding decisions of the Florida Transportation Plan (FTP). 

PSA Planning and Service Area/Public Service Announcement

PTMS Public Transportation Facilities and Equipment Management System: A systematic process (required under ISTEA) utilized by state agencies and MPOs to collect and analyze information on the condition and cost of transit assets on a continual basis; data is to be used to help people choose cost effective strategies for providing and keeping transit facilities and equipment in good condition; process must be developed in Transportation Management Areas (TMAs); the use of CMS in non-TMAs is left to the discretion of state and local officals.

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QA Quality Assurance Program: An internal FDOT quality control program which relies on their employees to identify and resolve problems related to quality concerns. RAC Regional Activity Center: A compact, high intensity, high density, multi-use area appropriate for high growth; these areas may be eligible for increased development of regional impact (DRI) thresholds pursuant to Rule 28-24, F.A.C.

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RCI Roadway Congestion Index: A tool used to identify congestion on freeways and principal arterials; compares daily vehicle miles of travel per lane-mile to calculated daily vehicle miles of travel per lane-mile for identified congested conditions; an index value of 1.0 or greater indicates undesirable congestion.

RFB,RFP Request for Bids, Proposals, Qualifications: Preliminary stages of RFQ competitive
procurement processes, most commonly associated with purchase of capital items or consulting services by governmental agencies. 

RIN Regulation Identification Number: Identification number given to each federal action listed in the Unified Agenda of Federal Regulations. 

ROW Right-of-way: Real property that is used for transportation purposes; (R/W) defines the extent of the corridor that can be used for the road and associated drainage.

RPC Regional Planning Council: A multipurpose organization composed of representatives of local governments and appointed representatives from the geographic area covered by the council, and designated as the primary organization to address problems and plan solutions that are of greater than local concern or scope; currently 11 regional planning councils exist in Florida.

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SCP State Comprehensive Plan: Written goals, objectives and strategies that provide long range guidance for the social, economic and physical growth of the state; contained within Chapter 187, F.S.; regional and local comprehensive plans must be consistent with the SCP.

SHS State Highway System: A network of approximately 12,000 miles of highways in Florida owned and maintained by the state or state-created authorities; includes interstates, Florida’s Turnpike, arterial highways and other toll facilities.

SIP State Implementation Plan: Required documents which identify state actions and programs that will be utilized to help the state meet the national ambient air quality standards (NAAQS) and comply with federal and state air quality laws; the plan is prepared by the state and submitted to the U.S. Environmental Protection Agency (EPA) for approval.

SLP State Land Plan: The comprehensive statewide plan setting forth state land development policies to implement the state comprehensive plan; developed by the Department of Community Affairs (DCA).

SMS Highway Safety Management System: A systematic process utilized by state agencies and MPOs to provide information necessary for selecting and implementing effective highway safety strategies and projects designed to reduce the number and severity of traffic accidents; required for roads in the National Highway System (NHS) as a part of ISTEA; must be in use by October 1, 1997; the extent to which the remaining public roads are included in the process is left to the discretion of state and local officials.

SMSA Standard Metropolitan Statistical Area: See MSA. SOV Single Occupancy Vehicle: A vehicle occupied by only one person (the driver).

SRPP Strategic Regional Policy Plan: A plan, developed by each regional planning council (RPC), which contains goals and policies addressing affordable housing, economic development, emergency preparedness, natural resources of regional significance, and regional transportation issues; must be consistent with the state comprehensive plan (SCP).

STIP State Transportation Improvement Program: A staged, multiyear, statewide, intermodal
program that is consistent with the state and metropolitan transportation plans; identifies the priority transportation projects to be done over the next three years; is developed by the Florida Department of Transportation (FDOT) and must be approved by the Federal Highway Administration (FHWA) and the Federal Transit Administration (FTA) at least every two years.

STP Surface Transportation Program: A new federal block grant-type program created by ISTEA; may be used by states and localities for any roads (including the National Highway System) that are not functionally classified as local or rural minor collectors; roads eligible under this program are collectively known as federal-aid roads.

STP Statewide Transportation Plan: A long-range transportation plan (at least 20 years) which
provides direction for developing a statewide transportation system; in Florida, the state transportation plan (STP) and the 2020 Florida Transportation Plan are developed by the Florida Department of Transportation (FDOT); criteria are found in 23 CFR 450.214.

STPP Surface Transportation Policy Project: A national public interest group dedicated to ensuring that transportation policy and investments help conserve energy, protect environmental and aesthetic quality, strengthen the economy, promote social equity, and make communities more liveable; emphasizes the needs of people, rather than vehicles, in assuring access to jobs, services and recreational opportunities.

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TAC Technical Advisory Committee: A standing committee of most metropolitan planning organizations (MPOs); function is to provide advice on plans or actions of the MPO from planners, engineers and other staff members (not general citizens.)

TAZ Traffic Analysis Zone: The smallest geographical area routinely used for computer travel
simulation. The number of dwellings, population, employment, etc. per TAZ are estimated for existing and future years, for subsequent use in trip generation. (Rule of thumb, maximum of 10,000 ADT from each TAZ.)

TCEA Transportation Concurrency Exception Area: A specific geographic area where transportation concurrency requirements do not apply; area must be designated in a local comprehensive plan; requirements found in Rule 9J-5.0055(6), F.A.C.

TCM Transportation Control Measure: Actions aimed at reducing air pollutant emissions from
traffic; includes trip reduction ordinances, parking management, traffic flow improvements, etc.

TCMA Transportation Concurrency Management Area: A compact geographical area in which an areawide level of service (LOS) standard is applied for the purpose of meeting the concurrency requirements of Chapter 163, F.S.; area is designated in a local comprehensive plan; requirements are found in Rule 9J5.0055(5), F.A.C.

TD Transportation Disadvantaged: People who are unable to transport themselves or to purchase transportation due to disability, income status or age.

TDM Transportation Demand Management: Strategies to reduce peak period congestion which focus on managing travel demand; includes shifting solo drives to carpools or transit,  taggered work hours, telecommuting and other similar concepts.

TDP Transit Development Program: A short term (5 years) plan that identifies the intended development of transit, including equipment purchase, system management and operation.

TEA Transportation Enhancement Activity: Specific activities which can be funded with Surface Transportation Program (STP) funds; activities include pedestrian/bicycle facilities, acquisition of scenic easements and scenic historic sites, scenic or historic highway programs, scenic beautification, historic preservation, rehabilitation/operation of historic transportation structures, railway corridor preservation, control/removal of outdoor advertising, archeological planning/research and mitigation of highway runoff water pollution.

TIJR Turnpike Interchange Justification Report: A study submitted to determine if a new turnpike interchange should be approved.

TIP Transportation Improvement Program: A priority list of transportation projects developed by a metropolitan planning organization that is to be carried out within the three year period following its adoption; must include documentation of federal and state funding sources for each project and be consistent with adopted local comprehensive plans.

TMA Transportation Management Association: a membership organization designed to help a group of businesses, companies, and other interested parties implement a commute management program; some funding for these groups is available through the state Commuter Assistance Program (CAP).

TMA Transportation Management Area: A special designation given to all urbanized areas with a population over 200,000 (or other area when requested by the Governor and MPO); these areas must comply with special transportation planning requirements regarding congestion management systems, project selection and certification; requirements identified in 23 CFR 450.300-.336.

TMO Transportation Management Organization: See TMA.

TMS/H Traffic Monitoring System for Highways: A systematic process for collecting data regarding traffic counts, types of vehicles, vehicle weight and vehicle occupancy; all public roads except local or rural minor collectors are to be included; required by ISTEA to be in operation by October 1, 1996.

TND Traditional Neighborhood Design: A development concept which focuses on the neighborhood as the basic building block; incorporates mixed uses, hierarchy of streets, pedestrian orientation and architectural design.

TOD Transit-Oriented Development: A mixed use community or neighborhood designed to encourage transit use and pedestrian activity.

TRB Transportation Research Board: A unit of the National Research Council whose purpose is
to advance knowledge about transportation systems; publishes the Highway Capacity Manual.

TRO Trip Reduction Ordinance: Ordinance which requires developers or employers to provide transportation demand management (TDM) strategies to employees; goal of these ordinances
is to reduce traffic generated by businesses.

TSM Transportation Systems Management: Strategies to improve the efficiency of the transportation system through operational improvements such as the use of bus priority
or reserved lanes, signalization, access management, turn restrictions, etc.

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UAM Urban Airshed Model: Regional air quality model which allows overall concentrations for an entire region to be predicted.

UIA Urban Infill Area: A specific area delineated in a local comprehensive plan which can be eligible for designation as a transportation concurrency exception area (TCEA); requirements identified in Rule 9J-5.0055(6), F.A.C.

UPWP Unified Planning Work Program: Developed by Metropolitan Planning Organizations (MPOs); identifies all transportation and transportation air quality activities anticipated within the next one to two years, including schedule for completing, who is doing it, and products to be produced

UZA (UA) Urbanized Area: As defined by the Bureau of Census, an area with a population of at least 50,000; generally consists of a central city and the surrounding suburbs; boundaries do not necessarily coincide with existing political jurisdictional boundaries; an MPO is required to be designated for each UZA(UA). VMT Vehicle Miles of Travel: Measure of travel activity
for highways; computed by multiplying the number of vehicles by the miles traveled in a given area, route or highway over the specified time period (usually a day); VMT is often used as a measure of effectiveness for strategies to reduce miles traveled.

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VT Vehicle Trip: The one-way movement of a vehicle between two points. WB Westbound: used to describe the direction traffic is traveling along a road; used in conjunction with EB (eastbound), NB (northbound), and SB (southbound). Z Data Traffic Zone Analysis Data: data commonly used in the FSUTMS process to figure out how many trips are generated in a given traffic analysis zone (TAZ) .

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WB Westbound: used to describe the direction traffic is traveling along a road; used in conjunction with EB (eastbound), NB (northbound), and SB (southbound). Z Data Traffic Zone Analysis Data: data commonly used in the FSUTMS process to figure out how many trips are generated in a given traffic analysis zone (TAZ) .

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Z Data Traffic Zone Analysis Data: data commonly used in the FSUTMS process to figure out how many trips are generated in a given traffic analysis zone (TAZ)

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