V2I 통신환경을 활용한 연동교차로 교통신호 실시간 제어 연구
Development of Real-time Traffic Signal Control Strategy for Coordinated Signalized Intersections under V2I Communication Environment
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초록
본 연구에서는 V2I 통신환경 하에서 수집되는 개별 차량 정보를 활용하여 연동교차로의교통상황에 대응할 수 있는 실시간 교통신호 제어 알고리즘을 개발하였다. 본 연구에서 개발된 알고리즘은 매 초 간격으로 V2I 통신환경에서 수집되는 차량 정보를 가공 처리하여 연동교차로 교통신호 제어에 필요한 현시 그룹 길이, 현시 길이, 현시 순서 등을 결정할 수 있다. 개발된 연동교차로 교통신호 제어 알고리즘의 효과 평가를 위해 미시교통시뮬레이션 모형인VISSIM을 이용하였다. 다양한 교통조건 하에서 기존 정주기식 연동 교통신호 제어 방식과 개발된 알고리즘의 성능을 비교한 결과, 개발된 알고리즘의 성능이 우수한 것으로 확인되었다.
Abstract
This study was initiated to develop an optimal signal control algorithm for coordinated signalized intersections using individual vehicle’s information which can be collected in a format of prove vehicle data (PVD) via V2I (Vehicle to Infrastructure) communication environment. For developing this signal optimization algorithm, three modules were developed for phase group length computation, split distribution, and phase sequence assignment. The simulation analysis using the microscopic simulation model, Vissim, was conducted for evaluating the effectiveness of the developed algorithm. The analysis result represented that the performance of the developed algorithm is far superior to that of the fixed coordinated signal control method which is the most common signal control method for coordinated signalized intersections in Korea.
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