This report identifies opportunities to improve transit performance using Advanced Public Transportation System (APTS) Technologies, assesses transit operator viewpoints on and experiences with APTS technologies, and proposes how current adoption and utilization practices might be improved so that these technologies are used in a more efficient and effective manner. The study focuses on the attitudes and experiences of individual transit agency management, staff, and line personnel that are likely to determine their future choices with regard to APTS adoption and utilization. The research involved three phases: 1) identify APTS technologies and develop a framework for assessing their potential value in improving transit system performance; 2) conduct seven case studies of individual transit operators chosen to include properties that have adopted APTS technologies as well as those that have not; and, 3) conduct a transit operator survey.

This report describes the evaluation of the effectiveness and adequacy of cellular phones for incident detection as an alternative to infrastructure-based surveillance systems. The analysis was part of the I-880 field experiment using the California Highway Patrol's (CHP) Computer Aided Dispatch (CAD) incident database. Cellular phones have the highest detection rate among the examined detection sources. Results from the study, however, indicate that incidents reported by cellular phones show greater incident durations than similar incidents reported by the CHP or the Freeway Service Patrol (FSP). This additional delay is attributed to the incident verification process. Index Terms: cellular radio // incident management