Arterial Management Program
time-lapse photo of traffic traveling in both directions on an urban arterial road
21st Century Operations Using 21st Century Technologies

Arterial Management Program

What's New

A Methodology and Case Study: Evaluating the Benefits and Costs of Implementing Automated Traffic Signal Performance

This document describes a methodology that includes a quantitative component supported by a subjective analysis. The intent of the methodology is to describe advantages and disadvantages of using a performance-based traffic signal monitoring process, when compared to the traditional approaches of monitoring and retiming traffic signals. The methodology is intended to validate the attainment of traffic signal program objectives and agency goals as articulated in a Traffic Signal Management Plan, Transportation System Management and Operations Plan, or other strategic planning document(s).

Arterial roadways are a crucial link in the national transportation system providing for regional mobility and access to land use that is vital to our economy and quality of life.  Arterials account for more than one million lane miles of roadway, connecting local and collector roads to the national highway systems. Traffic signals provide for the safe transfer of right of way and manage the distribution of green time for vehicles, pedestrians and bicycles for signalized intersections on arterial, collector and local roads. There are more than 330,000 traffic signals in the United States serving urban, suburban and rural communities throughout the United States. Over 3,000 state, regional and local organizations are responsible for varying levels of management, operation and maintenance of the nation’s traffic signal infrastructure; valued at over $72 billion.

The goal of the Arterial Management Program is to advance the use of objectives and performance based approaches to traffic signal management, to improve design, operations and maintenance practices, resulting in increased safety, mobility and efficiency for all users.

Focus Areas

Office of Operations