Transit signal priority detection systems range from $2,500 to $40,000 per intersection and $50 to $2,500 per vehicle, depending on the type of detection used.

Results from TCRP Synthesis Report 83.

Nationwide,United States; Los Angeles,California,United States; San Francisco,California,United States; Tacoma,Washington,United States; Houston,Texas,United States; Sacramento,California,United States; King County,Washington,United States; Chicago,Illinois,United States; Pittsburgh,Pennsylvania,United States; San Mateo County,California,United States; Broward County,Florida,United States; San Jose,California,United States

Summary Information

Transit preferential treatments have been deployed across the United States and around the world in order to improve travel times and reliability of bus and light rail routes. Examples of transit preferential treatments include exclusive lanes and median transitways, transit signal priority, queue jumps and bypass lanes, curb extensions, and stop consolidation. The costs of transit signal priority (TSP) systems are reported below. These costs are from a synthesis report on Bus and Rail Preferential Treatments in Mixed Traffic, conducted as part of the Transit Cooperative Research Program, and as such, the costs are compiled from multiple deployment locations.

SystemTechnologyEquipment Cost / IntersectionEquipment Cost / BusOperating and Maintenance CostsJurisdictions using this detection
OpticalOptical EmittersModerate ($8,000 - $10,000)Moderate ($1,000)Emitter Replacement ($1,000)Portland; San Francisco; Tacoma; Kennewick, WA; Houston; Sacramento; and others
Wayside ReaderRadio frequency technology. Uses vehicle-mounted tags and wayside antenna, which must be located within 35 ft of transit vehicle. Radio transmits and decoder reads rebound message.High ($20,000 - $40,000)Low ($50)Tag Replacement ($50)King County, WA
"Smart" LoopsLoop amplifier detects transmitter powered by vehicle's electrical system.Low ($2,500 per amplifier; use existing loop detector)Low ($200)Same as loop detectorLos Angeles; Pittsburgh; San Mateo County, CA;
GPSGPS receivers mounted on transit vehicle. Line of sight not required for detectionModerate ($6,000 - $10,000)High ($2,500)N/ABroward County, FL; San Jose
WirelessApplies unused bandwidth. Use of mesh networking.Moderate (Under $10,000) - Dependent on number of access pointsModerate (Under $1,000)High if Cellular Digital Packet, low if LANLos Angeles County
Table 19: Costs of Different TSP Detection Systems (page 63)

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TCRP Synthesis 83: Bus and Rail Transit Preferential Treatments in Mixed Traffic

Author: Ala R. Danaher,

Published By: Transportation Research Board

Source Date: 2010


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Cost ID: 2013-00286