Design of Transit Signal Priority at Signalized Intersections with Queue Jumper Lanes

This paper proposes a signal control design for queue jumper lanes with actuated transit signal priority (TSP) strategies and then compares its performance with that of the general actuated mixed-lane TSP. The author describes a queue jumper lane is a special bus preferential treatment that combines a short stretch of a special lane with a TSP to allow buses to bypass waiting queues of traffic and then to cut out in front of the queue by getting an early green signal. The study evaluated different design alternatives in the VISSIM microscopic simulation. Topics include special phase designs, signal timing parameter determination, coordination recovery, and green reimbursement strategies, as well as a strategy for multiple bus requests for priority service. The results show that the proposed TSP with queue jumper lanes can reduce more bus delays than can the commonly-used mixed-lane TSP, especially under high traffic volume conditions. The authors also found that a near-side bus stop is superior to the far-side counterpart in terms of both bus delay and overall intersection delay for the proposed design.

Language

  • English

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Filing Info

  • Accession Number: 01150395
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Jan 30 2010 10:57AM