Adaptive control software for distributed systems

Raj Ghaman, Douglas Gettman, Larry Head, Pitu Mirchandani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Traffic control systems in United States evolved from electro-mechanical time-clock based to computer-based in late 1970's. The research and development sponsored by the Federal Highway Administration resulted in mainframe computer based centralized systems called Urban Traffic Control Software (UTCS). The key aspects of these systems were second by second command and control by the central computer of electro-mechanical controllers at each intersection. The communication technologies at the time were twisted pair time division multiplexing with a maximum of 12 intersections per pair of communication cable. A majority of the urbanized cities in the U.S. implemented such systems. In the 1990's, the Federal Highway Administration (FHWA) started research called Adaptive Control Software (ACS). This research generated four adaptive traffic control software prototypes called RHODES, OPAC, RTACL and ATCS. The key aspect of the RHODES, OPAC, and RTACL is that the control software is decentralized with link by link short time prediction of traffic demand. ATCS extended the UTCS approach to include adaptive capabilities. This research constitutes a major advancement in traffic signal control since the deployment of UTCS.

Original languageEnglish (US)
Title of host publicationIECON Proceedings (Industrial Electronics Conference)
Pages3103-3106
Number of pages4
Volume4
DOIs
StatePublished - 2002
Externally publishedYes
EventProceedings of the 2002 28th Annual Conference of the IEEE Industrial Electronics Society - Sevilla, Spain
Duration: Nov 5 2002Nov 8 2002

Other

OtherProceedings of the 2002 28th Annual Conference of the IEEE Industrial Electronics Society
CountrySpain
CitySevilla
Period11/5/0211/8/02

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Ghaman, R., Gettman, D., Head, L., & Mirchandani, P. (2002). Adaptive control software for distributed systems. In IECON Proceedings (Industrial Electronics Conference) (Vol. 4, pp. 3103-3106) https://doi.org/10.1109/IECON.2002.1182892