도시부 상업지역 내 신호교차로의 효율적 좌회전처리를 위한 근측 버스정류시설 설치방법에 관한 연구

Abstract

The impacts of a left turning bus should be considered to efficiently manage left turning flows in urban intersections since buses are radically distinct from passenger cars in features of vehicle specifications and travel characteristics. This study aims to decide the minimum separation length of near-side bus stops and the minimum length of a bus bay for efficient operation at signalized urban intersections at commercial areas. Korea Highway Capacity Manual recommends that 75m of minimum separation length does not affect intersection operation and the U.S. made Guidelines for the Location and Design of Bus Stops says minimum separation length range from street corner to stop lines without suggesting any specific figures. As a result of analysis using queuing theory, minimum separation length of near-side stops is found to be 38m from stop lines. 40m may be recommendable when applied in design guidelines. When designing the minimum bus bay length, design speed, signal operation and maximum dwell time should be considered. The analysis results show that 15m length for bus bays should be added when the maximum dwell time exceeds 40 seconds in directional separation signal operation or when maximum dwell time exceeds 20 seconds in the case of lag dual left signal operation.