Saori HIYAMA

Optimization of Passing Lane Arrangement�@considering passing behavior for Two Lane Highway�@

Kazushi SANO,Shoji MATSUMOTO

Recently, it is difficult to build new highways with four lanes in local area with less demand because of the budget constraint for infrastructure. However, the service level of two lane highway is much less than that of four lanes. This paper aims to optimize passing lane arrangement for two lane highway by using traffic micro-simulator. Firstly, we develop the traffic micro-simulator that is considering passing behavior for two lane highway. Secondly, we obtain a video image at Hokuriku expressway and survey free flow speed, headway and platoon characteristics, and estimate parameters based on Hokuriku expressway data. We changed traffic volume and length of passing lane, and simulated a delay time by using the traffic micro-simulator. As results, we obtain the optimized lane length and number for each traffic volume with different proportion of trucks for single passing lane case. If the total length of the passing lane of two cases are same and traffic volume is small, it is confirmed that delay time of two passing lane is shorter than single passing lane.