Overview of the ACS-lite adaptive control system

Douglas Gettman, Steve Shelby, Larry Head, Raj Ghaman

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations


This paper presents an overview of the ACS-Lite adaptive control software for closed-loop traffic signal systems. ACS-Lite is designed as a low-cost, widely-deployable adaptive traffic control system that works with Econolite, Eagle, Peek, and McCain local actuated controllers. ACS-Lite collects data from signal controllers using the NTCIP protocol and makes real-time adaptive changes to the splits and offsets of the current traffic plan on the arterial. Performance analysis using CORSIM shows substantial improvements to total network traffic delay and specific delay and travel time improvements are possible in a number of typical scenarios where the baseline traffic control parameters are not optimized for the current traffic patterns.

Original languageEnglish (US)
StatePublished - 2006
Event13th World Congress on Intelligent Transport Systems and Services, ITS 2006 - London, United Kingdom
Duration: Oct 8 2006Oct 12 2006


Other13th World Congress on Intelligent Transport Systems and Services, ITS 2006
Country/TerritoryUnited Kingdom

ASJC Scopus subject areas

  • Mechanical Engineering
  • Transportation
  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Automotive Engineering
  • Artificial Intelligence
  • Control and Systems Engineering
  • Computer Networks and Communications


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