Glossaries

Acronyms

 

3R – Roadway Resurfacing, Restoration, or Rehabilitation (Project)

A/C – Access Control

AADT – Average Annual Daily Traffic

AAWT – Average Annual Weekday Traffic

AASHTO – American Association of State Highway and Transportation Officials

ADA – Americans with Disabilities Act

ADDS – Automated Data/Design Standards

ADT –  Average Daily Traffic

AHI – Adjusted Hazard Index

AREMA – American Railway Engineering and Maintenance of Way Association

ATR – Automated Traffic Recorder

AWG – American Wire Gauge

AWT – Average Weekday Traffic

C-D – Collector-Distributor

CDR – Collector Distributor Road

CFR – Code of Federal Regulations

CL – Centerline

CORSIM – Corridor Simulation Software

CWP – (GDOT) Construction Work Program

dBA –  Decibels, A-Scale

DHV – Design Hour Volume

DMS – Dynamic Message System

DTM – Digital Terrain Model

EN-EN – Entrance followed by entrance (as in ramp terminals)

EN-EX – Entrance followed by exit (as in ramp terminals)

ETI – Engineering Traffic Investigation (Report)

EX-EN – Exit followed by entrance (as in ramp terminals)

EX-EX – Exit followed by exit (as in ramp terminals)

FAA – Federal Aviation Administration

FDR – Freeway Distributor Road

FFPR – (GDOT) Final Field Plan Review

FHWA – Federal Highway Administration

FRA – Federal Railroad Administration

GDOT – Georgia Department of Transportation

GLA – Gross Leasable Area

GRIP – Governor’s Road Improvement Program

GRTA  – Georgia Regional Transportation Authority

HCM – Highway Capacity Manual (see References for additional information)

HCS – Highway Capacity Software

HOV – High Occupancy Vehicle

IES  –  Illuminating Engineering Society  

IESNA – Illuminating Engineering Society of North America

ISTEA – Intermodal Surface Transportation Equity Act

ITE – Institute of Transportation Engineers

L/A – Limited Access

LARP – Local Assistance Road Program

LOS – Level of Service

LR – Long Range

LRFD – (AASHTO) Load and Resistance Factor Design

LRTP – Long Range Transportation Plan

MPO – Metropolitan Planning Organization

MUTCD – Manual on Uniform Traffic Control Devices (FHWA). See References for additional information.

NCHRP – National Cooperative Highway Research Program

NHS – National Highway System

OCGA – Official Code of Georgia

OEL – (GDOT) Office of Environment and Location

PCC – Portland Cement Concrete

PDP – (GDOT) Plan Development Process

PE – Preliminary Engineering

PHF – Peak Hour Factor

PGL – Profile Grade Line

PI – Point of Intersection (intersection of tangents to a curve)

PC – Point of Curvature (where a curve begins)

PFPR – Preliminary Field Plan Review

PHV – Peak Hour Volume

PM – Preventive Maintenance

PT – Point of Tangent (where a curve ends)

PVI – Point of Vertical Intersection

QPL – (GDOT) Qualified Projects List

RCInfo – Roadway Characteristics Information

RDG – (AASHTO) Roadside Design Guide

ROR – Run-off-Road (as in crash)

ROW – Right-of-Way

RTV – Right Turn Volume

RV – Recreational Vehicle

SIDRA – Signalized and Unsignalized Intersection Design and Research Aid

SPUI – Single Point Urban Interchange

SRTA – State Road and Tollway Authority

STARS – (Georgia) State Traffic and Report Statistics

STIP – Statewide Transportation Improvement Plan, also referred to as SWTP

SWTP – Statewide Transportation Plan

TAZ – Traffic Analysis Zone

TIP – Transportation Improvement Program

TL – Travel Lane

TOPPS – Transportation Online Policy and Procedure System

TRB – Transportation Research Board

TWLT – Two-Way Left Turn

UAPSM – (GDOT) Utility Accommodation Policy and Standards Manual. See References for additional information.

USGS – United States Geological Survey

VE – Value Engineering

Vpd – Vehicles per day

WB – Wheel Base (of a design vehicle)