Bus Signal Priority——a Useful Technology for Beijing Public Transportation Development

With regard to the demands for bus signal priority on intersections based on road traffic system,the deployment of bus signal priority system including priority request generation system,communication system and traffic signal control system is briefly introduced through detailed demand analysis.It focused on applications of control and inspection technologies of bus signal priority.The expanded hardware is made up of RFID vehicle detection equipment,connection equipment,and signal controller.The software platform is made up of prior surveillance,equipment management,data management,and statistic analysis.The example comparison illustrates the reduction of travel time after the usage of the bus priority technology,which preves that this technology can give impetus to development of public transportation in Beijing.It is suggested that the road safeguarding system including channel priority of path and intersection,using right guarantee of special lane,and inducement of traffic information releasing are the basis of ensuring the effectiveness of bus signal priority system.