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2018 Vol.36, Issue 2 Preview Page
April 2018. pp. 98-111
Abstract
Truck platooning, which is a cluster of trucks in support of vehicle-to-vehicle communication and automated longitudinal vehicle control, is a promising method to both operational efficiency and prevent traffic crashes. Although a variety of studies have been conducted to identify the effects of vehicle platooning on traffic stream, we are not aware of any study attempting to identify promising road segments for vehicle platooning. This study aims to develop a methodology for determining the priority of freeway segments that would potentially lead to maximize the effectiveness of truck platooning. Evaluation measures derived in this study includes truck crash rates, the percentage of truck traffic, segment length, and the number of entry and exit points. Weighting values obtained from an analytical hierarchical process (AHP) method were applied to compute the proposed priority score to determine better freeway segment for truck platooning. Results suggested that a 46.9km freeway segment, from Sacheon IC to Sanin JC, was the most promising segment for maximizing the effectiveness of truck platooning. It is expected that the outcome of this study would be effectively used as a fundamental to establish operational strategies for truck platooning.
자율주행 차량의 주행형태 중 군집주행은 차량간 통신으로 연결된 2-5대 차량이 최소한의 안전거리만을 유지한 채 일정한 간격을 두고 주행하는 방식으로, 교통 운영효율성과 안전성을 향상시킬 수 있는 잠재력을 가지고 있다. 그러나 자율주행 및 군집주행이 교통류에 미치는 효과와 관련된 연구는 다수 수행된 바 있지만, 군집주행 도입 시 효과가 극대화될 수 있는 도로구간의 선정에 대한 연구는 미흡한 상황이다. 본 연구의 목적은 화물차 군집주행이 가능한 최적의 고속도로 구간을 선정하는데 초점을 맞추어 그 효과가 가장 클 것으로 예상되는 구간의 우선순위를 도출하는 것이다. 화물차 군집주행 적용구간 선정 평가항목으로는 화물차 사고율, 화물차 비율, 구간길이, 진출입 지점 수로 설정하였다. 각 평가항목의 중요도를 평가하기 위해 계층화분석법을 적용하였다. 분석결과, 남해고속도로 사천IC-산인JC 46.9km 구간에 화물차 군집주행을 운영하는 것이 가장 적합한 것으로 나타났다. 본 연구에서 도출된 결과는 향후 화물차 군집주행 시범 운영을 위한 기초자료로 활용될 수 있을 것으로 기대된다.
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