Development of Proactive Lane-change Assistant Strategy based on Infrastructure Cooperation for Managing Mixed Traffic in Connected Environments

Young Jo; Cheol Oh

doi:10.7470/jkst.2023.41.5.607

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2023 Vol.41, Issue 5 Preview Page Next Page

Article

Development of Proactive Lane-change Assistant Strategy based on Infrastructure Cooperation for Managing Mixed Traffic in Connected Environments 커넥티드 환경에서 자율-비자율차 혼재교통 관리를 위한 인프라 협력형 선제적 차로변경지원 정보 제공 전략

31 October 2023. pp. 607-623

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Abstract

A proactive traffic management strategy is required to avoid hazardous events in connected environments in support of vehicle-to-everything (V2X) wireless communications. The provision of traffic information that supports maneuver control and decision-making for safe driving of connected autonomous vehicles (CAVs) and connected human-driven vehicles (CHVs) can be realized in cooperative infrastructure environments. The purpose of this study is to develop the Proactive Lane-changE Assistant Strategy for Automated iNnovative Transportation (PLEASANT) to manage mixed traffic, in which CAVs and CHVs coexist. PLEASANT is a strategy of providing traffic information to vehicles for changing lanes when approaching events such as traffic accidents, broken-down vehicles, and upcoming hazardous obstacles. The proposed strategy was evaluated based on driving simulation and microscopic traffic simulation. The driving behavior of human-driven vehicles following autonomous vehicles was analyzed using the driving simulation. The driving characteristics of the human-driven vehicles obtained from the driving simulation are plugged into the traffic simulation. The effectiveness of PLEASANT was evaluated by implementing the maneuvers of CAVs and CHVs, which were provided traffic information using traffic simulation. The results showed that traffic mobility and safety were improved by approximately 75% and 21%, respectively. The proposed strategy is expected to reduce traffic congestion by providing proactive lane change assistant information for CAVs and CHVs with enough time to change lanes.

Keywords

connected environment

driving-traffic simulation

lane change assistant

mixed traffic

proactive traffic management strategy

차량과 인프라 간의 V2X 무선통신이 가능한 커넥티드(connected) 환경에서 위험 상황을 사전에 회피하기 위한 선제적 교통관리전략 수립이 요구된다. 자율차와 비자율차의 안전한 도로주행을 위한 거동제어 및 의사결정을 지원하는 교통정보 제공은 인프라 협력 환경에서 현실화 될 수 있다. 따라서 본 연구의 목적은 커넥티드 환경에서 자율 및 비자율 차량이 혼재된 교통류 관리를 위한 인프라 협력형 선제적 차로변경지원 정보 제공 전략(Proactive Lane-changE Assistant Strategy for Automated iNnovative Transportation, PLEASANT)을 개발하고 평가하는 것이다. PLEASANT는 전방 교통사고, 고장차량, 낙하물과 같은 돌발상황 발생 시 상류부에서 진입하는 차량의 사전 차로변경을 유도하기 위한 교통정보를 제공 및 공유하는 방안이다. 본 연구에서 제안한 전략은 주행-교통 시뮬레이션 연계 기반의 방법론을 통해 평가되었다. 주행 시뮬레이션은 자율 및 비자율 차량추종 상황에서 후행 비자율차의 주행행태를 분석하기 위하여 활용되었다. 주행 시뮬레이션으로부터 도출된 비자율차의 주행특성은 교통 시뮬레이션에 반영되었다. 교통 시뮬레이션은 교통정보를 제공받는 차량의 거동을 구현함으로써 PLEASANT의 효과평가를 목적으로 사용되었다. 커넥티드 환경에서 PLEASANT 적용 시 이동성 및 안전성은 최대 각각 약 75%와 21% 증대되는 것으로 도출되었다. 본 연구에서 개발한 PLEASANT는 자율차와 비자율차의 운전자에게 가용한 차로변경 수행 시간을 충분히 제공하여 혼잡상황을 예방할 수 있을 것으로 기대된다.

키워드

커넥티드 환경

주행-교통 시뮬레이션

차로변경지원

혼재교통류

선제적 교통관리전략

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Information

Publisher :Korean Society of Transportation
Publisher(Ko) :대한교통학회
Journal Title :Journal of Korean Society of Transportation
Journal Title(Ko) :대한교통학회지
Volume : 41
No :5
Pages :607-623
Received Date : 2023-06-19
Revised Date : 2023-07-27
Accepted Date : 2023-08-04
DOI :https://doi.org/10.7470/jkst.2023.41.5.607

Journal of Korean Society of Transportation ISSN:1229-1366(Print) 2234-4217(Online) 대한교통학회지

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