01557704

Component

https://doi.org/10.3141/2484-15

This research evaluated the implementation of transit signal priority (TSP) on a test corridor along International Drive in Orlando, Florida, to see whether the implementation was successful and justified expansion to a regional implementation of TSP for bus tie-ins to the new regional SunRail commuter rail in Central Florida. TSP is a technology that provides preferential treatment to buses at signalized intersections. This research demonstrated the effectiveness of TSP in improving bus corridor travel time in a simulated environment by using real-world data for the International Drive corridor. Evaluation was conducted with microsimulation to compare unconditional and conditional TSP with the no TSP scenario. This evaluation looked at performance metrics (for buses and all vehicles), including average speed profiles, average travel times, average number of stops, and crossing street delay. Different conditional TSP scenarios of activating TSP when a bus is 3 or 5 min behind schedule were considered. The simulation demonstrated that conditional TSP significantly improved bus travel times with little effect on crossing street delays. Unconditional TSP resulted in significant crossing street delays at some intersections with only minor improvement to bus travel time compared with both conditional TSP scenarios. The results also showed that using TSP technology reduced the environmental emissions in the International Drive corridor. With a benefit–cost ratio of 7.92 in the International Drive corridor, conditional TSP 3 min behind schedule was determined to be the most beneficial and practical TSP scenario for real-world implementation at corridor and regional levels.

01589720

15-3585

English

pp 140–148

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369282

Print

Figures (2) ; References (20) ; Tables (3)

Benefit cost analysis; Bus priority; Environmental impacts; Microsimulation; Traffic delays; Traffic signal priority; Travel time

Orlando (Florida)

Operations and Traffic Management; Public Transportation; Safety and Human Factors; I72: Traffic and Transport Planning; I73: Traffic Control

PRP, TRIS, TRB, ATRI

Dec 30 2014 1:11PM

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