Synopsis

This report was commissioned by the City of Kingston Transportation Services to evaluate the effectiveness of Transit Signal Priority (TSP) systems installed at three intersections, namely Princess St. at Bayridge Dr., Gardiners Rd., and Midland Ave. The goal was to increase ridership from 5% to 15%. The report analyzed the intersections based on time savings and environmental impact. The report used a MATLAB code to simulate the probability of TSP being initiated, calculate average time savings for buses, and changes in wait times for cars at the intersections. The report found that TSP led to a total time saving of 30% for the 502 bus route and 70% for the 501 bus route compared to when TSP was not engaged. The report also found a fuel savings of 0.05 gallons of diesel for buses and 0.41 gallons of diesel and 16.32 gallons of gasoline for all cars and trucks per hour when TSP was active. Additionally, 148.09 kilograms less of carbon dioxide were emitted. The report recommended the default TSP signal timings of fifteen-second maximum extension and five-second maximum truncation. The report was validated by VSSIM traffic software, and case studies were analyzed to ensure the results were consistent with other TSP systems.