详情

Evaluation of Camera-Based Systems to Reduce Transit Bus Side Collisions

项目名称：	Evaluation of Camera-Based Systems to Reduce Transit Bus Side Collisions
摘要：	Side collisions, including sideswipe and angle crashes, make up the highest percentage of transit collisions, accounting for more than 40% of all crashes (Wang et al. 2003). Camera-based systems have great potential to provide drivers with views of the blind zones that exist due to the inability of mirrors to cover those zones. This side view camera system has great potential to enhance, or even replace mirrors, and provide drivers with a clear view of the sides of the bus especially during common lane changing maneuvers. It can eliminate the need for adjustments, especially in the case of changing drivers of an in-service bus. It can also eliminate the danger of bus right-side mirrors hitting passengers waiting for the bus. Previous research on side view camera systems includes comparisons between mirror, sensor, and camera-based systems as collision avoidance technologies. Findings show that the sensor-based systems are not reliable; they provide false warnings and, with time, are rendered unusable by the drivers (Dunn et. al. 2007). An aftermarket side view camera system was studied in Phase I of this project using a controlled driver test to assess the system's effectiveness in a controlled environment. The result of the controlled driving test showed convincing potential to use side view camera systems to reduce transit bus side collisions. The side view camera system can reduce or eliminate blind zones. The video system provides a much better view than the mirrors under rainy conditions and at night due to the use of infrared illumination (Lin et. al. 2010). The feedback received from the 28 bus drivers that participated in the controlled driver test was positive. Based on the findings from Phase I, the existing aftermarket side view camera systems used in the Phase I study can be further enhanced to achieve the best results. A field deployment with existing mirror system and enhanced side view camera systems through local transit agencies along with a comprehensive evaluation will be carried out in Phase II to evaluate its effectiveness.
状态：	Completed
资金：	98840.00
资助组织：	National Center for Transit Research
项目负责人：	Volinski, Joel
执行机构：	National Center for Transit Research
开始时间：	20111201
实际结束时间：	20121231
主题领域：	Data and Information Technology；Public Transportation；Security and Emergencies