Traffic Conflict Modelling at Six Leg Unsignalized Intersection

摘要

Traffic conflicts at six leg unsignalised intersection could produce traffic accident, this is because of complex traffic interaction in this area. This paper describes the result of analysis and modelling on traffic conflict at six leg unsignalised intersection. The data was captured using handycam, and extracted using video playback and traffic logger. From the analysis, it shows that traffic volume at this intersection is still relatively low, however, the number of conflicts is relatively high. This is because of high number variation of traffic manoeuvres from six intersection leg, and the wide area at conflict zone produce high variation of traffic manoeuvres. The majority traffic conflict type at the site is crossing. From the analysis of time to accident and vehicle speed, it shows that majority conflict type is non-serious conflict. These conflicts have been modelled using multi-regression linier, traffic volume and average traffic speed are used as the independent variables.