Title

MODELING APPROACH FOR TRANSIT SIGNAL PREEMPTION

Document Type

Journal Article

Publication Date

2002

Subject Area

operations - coordination, operations - traffic, infrastructure - bus/tram priority, infrastructure - traffic signals, ridership - commuting, mode - bus

Keywords

Traffic signal priority systems, Traffic signal preemption, Traffic signal networks, Traffic signal coordination, Traffic signal control systems, Synchronization (Traffic signals), Simulation, Preemption (Traffic signals), Linked signals, Interconnection (Traffic signals), Computer simulation, Computer controlled signals, Chicago (Illinois), Bus transit operations, Automatic traffic signal control

Abstract

A simulation/assignment-based approach is introduced for evaluating the regionwide effect of signal preemption strategies for bus transit operations. The model addresses both the propagation and interaction of traffic with the bus operations as well as the routing behavior of drivers in response to the introduced preemption control. Furthermore, the need and feasibility of conducting this evaluation at the systemwide level is discussed and demonstrated. An example traffic network that includes Cermak Road in Chicago, Illinois, is used to demonstrate the applicability of the modeling approach.