The goal of this paper is to demonstrate a method for evaluating a preferential treatment technique for light rail transit (LRT) in urban areas. A mathematical delay model, which uses probability expressions, is presented to evaluate two LRT preemption signal strategies in existing arterial medians. The model permits the user to evaluate three operational options: a two-phase signal plan, a three-phase signal plan with a separate LRT phase, and a three-phase signal plan with an exclusive left-turn phase for main arterial vehicles. The signal controller modeled in this paper has green extension and red truncation capabilities. Model testing and validation proved that the model parameters consistently produced reasonable results. Control warrant guidelines were developed for two operational options.

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 69-75
  • Monograph Title: Traffic control devices and rail highway crossings
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00452655
  • Record Type: Publication
  • ISBN: 0309038227
  • Files: TRIS, TRB
  • Created Date: Apr 30 1986 12:00AM