USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation
FHWA Highway Safety Programs

Abbreviations

CMAQ – Congestion Mitigation and Air Quality Program

CMFs – Crash Modification Factors

FHWA – Federal Highway Administration

HRRRP – High Risk Rural Road Program

HSIP – Highway Safety Improvement Program

IM – Interstate Maintenance

MPO – Metropolitan Planning Organization

PDIT – Program Delivery Improvement Tool

RHGCP – Railway-Highway Grade Crossing Program

RPC – Regional Planning Commission

RSAs – Road Safety Audits/Assessments

SDOT – State Department of Transportation

SHSP – State Strategic Highway Safety Plan

SPF – Safety Performance Functions

State HSIP – State Highway Safety Improvement Program

STIP – State Transportation Improvement Program

STP – Surface Transportation Program

TIP – Transportation Improvement Program