DESIGN AND IMPLEMENTATION STRATEGIES FOR THE MASS REPLACEMENT OF CONTROLLERS WITHIN AN AREAWIDE COMPUTERIZED SIGNAL SYSTEM

The city of Tampa, Florida, desired to upgrade its traffic signal control equipment at approximately 500 locations to better enhance coordination and timings. The city's existing system is a microcomputer-based system with Modern Traffic Control System for Personal Computers (MTCS.pc) software, which utilizes the control and operating principles of the Urban Traffic Control System software, with once-per-second command and monitoring communications with each intersection controller. However, MTCS.pc also allows for the full uploading and downloading of controller data over the communications network utilizing the proprietary communications protocol known as Protocol-90. The primary reason to replace the existing controller equipment is to provide direct communications between the central hardware and the intersection controllers without the need for a communications interface unit. Only with direct communications capability can the Protocol-90 communications and upload and download be implemented. A consultant was given the responsibility of creating a strategic plan that would ensure the successful integration and proper operation of the controller equipment and related components into the city system. This effort developed the plans and specifications for furnishing and installing new controller assemblies at numerous intersections throughout Tampa, as well as modifying some existing controllers and cabinet equipment to allow implementation of the Protocol-90 communications format.

Language

  • English

Media Info

  • Pagination: 5p

Subject/Index Terms

Filing Info

  • Accession Number: 00770252
  • Record Type: Publication
  • Report/Paper Numbers: Publication No. CD-006
  • Files: TRIS
  • Created Date: Oct 18 1999 12:00AM