Road Safety in Sections under Mixed Flow Traffic Environment

Abstract

Mixed traffic is a significant feature of Chinese traffic flow on urban street network, which is also a major cause of traffic congestion and frequent traffic accidents. In sections where motor vehicles and non-motor vehicles moving in same direction without separation, they would interfere with each other. This interference has serious impact on the capacity of sections, and simultaneously increases the accident risk. This paper analyzed the data through the method of probability theory and statistics， and got the result that “the number of non-motor vehicles and the lateral distant between motor vehicles and non-motor vehicles are both interference factors aroused by non-motor vehicles”. Finally, non-motor vehicles' disturbance model to the motor vehicles were set up based on data analysis and proved to be correctly. The research provided a theoretical and basis to the traffic safety management under the mixed