Automated Traffic Signal Performance Measures icon

Automated Traffic Signal Performance Measures

ATSPM's show real-time and historical functionality at signalized intersections. This allows traffic engineers to directly measure what previously could only be estimated and modeled.

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The following are those who have contributed changes to the ATSPM system:

Logos of all those those who have contributed changes to the ATSPM system

Getting started

You can download the software for our site by clicking the button below.

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What's New

Version 4.2.4 (January 2021)


  • Build fixes for MOE.Common and AsyncGetMaxTimeRecords. *Note: Test products have to be unloaded for solution to build
  • Remove SpmApi project - seems to have been replaced by AtspmApi project but was still referenced in sln file.
  • Change Left Turn Gap Analysis Options display to use cards instead of panels to support bootstrap update.
  • Change seed method and get metric type by signal to only include Left Turn Gap Analysis report for signals with detection types 4 or 6.
  • Update to Left Turn Gap Analysis calculations. Report had been using rolling 15-minute windows regardless of the bin size the user specified - this update changes the rolling window to match the user's bin size.
  • New installer provided by Georgia Department of Transportation. This will be located in the Installer folder in the download.
  • Installations/Updates will only update core menu items reducing duplication and changes to customization of menus.
  • Re-order of metric type in the metric selection.

What's Next

Version 4.2.5 (Anticipated Release Spring 2021)

  • All pull requests from other entities
  • Fix Minor Bugs
  • GDOT Enhancements including
    • New metric "Wait Time".
    • Old to New MVID migration and updates.
    • Some SIGOPS (previously MARK1) integration.

Version 4.2.6 (Anticipated Summer/Fall 2021)

  • SIGOPS Dashboard & Reports integration into ATSPM.
  • Adding an Area & Jurisdiction category to ATSPM Configuration.
  • Adding a new ATSPM Report titled, "Left Turn Gap Analyzer