Automated Traffic Signal Performance Measures (ATSPMs)
Thursday, October 26, 2017
11:30 AM -1:00 PM [EST]

To join the webinar, participants must register. Wherever possible, we encourage you to attend from a conference room where everyone can gather as a group.
Click Here to Register

ATSPMs modernize traffic signal management by providing high-resolution data to support objectives and performance-based maintenance and operations strategies that improve safety and efficiency while cutting congestion and cost.

There are more than 330,000 traffic signals operating in the United States, and highway agencies typically retime these signals on a three- to five-year cycle at a cost of approximately $4,500 per intersection. For the vast majority of these signals, citizen complaints are the primary measure of performance. Not having performance data drives retiming costs up by requiring software modeling to simulate performance, along with detailed, manually collected traffic data.

Why use ATSPMs?

The Federal Highway Administration (FHWA) is promoting automated traffic signal performance measures (ATSPMs) in the fourth round of Every Day Counts (EDC-4) as a means to improve on these traditional retiming processes by providing continuous performance monitoring capability. Signal retiming efforts can be based directly on actual performance without dependence on software modeling or expensive, manually collected data.

ATSPMs consist of a high-resolution data-logging capability added to existing traffic signal infrastructure and data analysis techniques. This provides agency professionals with the information needed to proactively identify and correct deficiencies. They can then manage traffic signal maintenance and operations in support of an agency’s safety, livability and mobility goals.

The technology is cost effective, as ATSPMs can be applied to a wide range of signalized intersections and use existing infrastructure to the greatest extent possible. ATSPMs will also support the validation of other technologies and operational strategies, such as adaptive signal control and emerging connected vehicle applications.


  • Increased Safety. A shift to proactive operations and maintenance practices can improve safety by reducing the traffic congestion that results from poor and outdated signal timing.
  • Targeted Maintenance. ATSPMs provide the actionable information needed to deliver high-quality service to customers, with significant cost savings to agencies.
  • Improved Operations. Active monitoring of signalized intersection performance lets agencies address problems before they become complaints.



 NEW Registration Process

Registration is a two-step process. First, non-DOT users including State DOTs must request access to the FHWA External Portal. Second, non-DOT users including State DOTs must login using the email address used to request access to the site and their requested password.

EXTERNAL users (those without a email address) will have to request an account before they can register. Here is the link to request an account: Step-by step instructions on how to request an account can be found here:

For additional information please contact Sharon Gordon at (email)

 Sharon V. Gordon
Federal Highway Administration—Office of Innovation Program Delivery
Center for Local-Aid Support
Innovative Deployment Specialist
Phone: 720.963.3589