摘要: |
Transit Signal Priority (TSP) is recognized as an emerging technology that is capable of enhancing traditional transit services. TSP is deployed to improve transit operations and service quality and eventually promote more ridership, improve person mobility, reduce traffic congestion, and reduce mobile-source emissions and fuel consumption. In recent years, TSP has been widely implemented by transportation agencies in North America and worldwide. The growing deployments of TSP across the nation require extensive evaluation studies. A number of studies have attempted to evaluate TSP using either empirical, analytical, and/or simulation tools. While analytical and simulation studies are widely used for the evaluation TSP projects, relatively few empirical studies have been conducted because of the high cost and manpower required to conduct such studies, the potential for errors, and unpredictable transit vehicle schedules. Global Positioning Systems (GPSs) offer a cost-effective means to conduct such studies. |