Implementation costs for transit signal priority range from $8,000 to $35,000 per intersection.
TSP cost can be dependant on the degree of priority system integration with the signal network, age and generation of signal hardware, on-board vehicle technology, climate and geography, system ownership, and transit operating rules. Software upgrades can also have a significant impact on operating and maintenance expenses; however, relatively low cost operations can be implemented by allowing the traffic signal devices to grant priority solely on the basis of the internal operating algorithms of the controller, and not on the status of the transit vehicle.
More sophisticated systems integrate signal control with transit management operations and incorporate more advanced ITS on-board transit vehicles to increase system functionality. Enhancements include automatic vehicle location (AVL), on-time performance, dynamic routing, load status, connection protection (to coordinate transfers), vehicle system conditions, passenger safety and other features. Each feature, while not essential to TSP, adds additional operating and maintenance expense.
This study concludes that system level costs for transit priority can vary widely, but in general are in the range of $8,000 to $35,000 per intersection.
Author: Baker, Ronald J., et al.
Advanced Traffic Management Systems Committee and Advanced Public Transportation Systems Committee of the Intelligent Transportation Society of America. 11 July 2002, updated and revised 2004
Published By: Intelligent Transportation Society of America (ITSA)
Source Date: 11 July 2002URL: http://www.itsa.org/resources.nsf/Files/Transit_Signal_Priority/$file/Transit_Signal_Priority.pdf
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bus priority, traffic signals, TSP, emitter, transponder