Evaluation of Spatial Motorcycle Segregation at Isolated Signalized Intersections Considering Traffic Flow Conditions

概要

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In Southeast Asia, motorcycles constitute a substantial portion of road traffic. Thus, a passenger-car-oriented traffic control system cannot operate effectively, and traffic efficiency is decreased. To achieve a sustainable and environmentally friendly society, a traffic control system suitable for mixed traffic including motorcycles is highly necessary. Although some traffic policies targeting motorcycles have been implemented, the criteria for implementing them are still unclear. Indeed, the characteristics of motorcycle-dominant traffic flow are not well understood. Thus, this study attempts to qualify the effect of motorcycle-oriented traffic operations and find the criteria for implementing them on the basis of detailed investigations of mixed traffic flow with motorcycles in various cities with differing traffic conditions. The results show that (1) unclear definition of traffic lanes may severely decrease the efficiency of traffic flow and (2) the most effective traffic scheme varies with traffic conditions.