01697438

Component

The study was to propose a cooperative lane changing strategy and determine the optimal lane changing zones to improve the operation performance at a diverging area in a connected and automated vehicles freeway environment. The cooperative strategy was implemented by the coordination of behaviors between the diverging vehicle and its cooperative vehicle on the target lane. The IDM and MOBIL were modified to develop the simulation platform of a connected and automated vehicles freeway environment. The optimal zones were firstly calculated by a heuristic algorithm, and then were applied into simulation platform to make the diverging vehicles perform the lane changings. The measurements were considered to evaluate the proposed strategy, including the total travel time, surrogate safety measures and lane changing rate etc. The experimental results showed that the length of the optimal zones obtained in the authors' strategy were smaller than the fixed zone required in practical strategy in the scenarios considering the effects of traffic safety and traffic operation. The authors' strategy with the optimal zones were compared with the practical strategy with the fixed zone. It indicated that their strategies effectively improved the traffic operation, traffic safety, traffic stability and lane changing rate as compared to the practical strategy for the larger traffic flow or higher lane changing rate. The strategy can be potentially applied nearby freeway off-ramps by vehicle-base control, with the implements of the cooperative zones.

This paper was sponsored by TRB committee AHB20 Standing Committee on Freeway Operations. Alternate title: Cooperative Lane Changing Strategies to Improve Traffic Operation and Safety Near Freeway Off-Ramps in a Connected and Automated Vehicles Environment

19-06039

English

7p

2019

Transportation Research Board 98th Annual Meeting

Digital/other

Figures; References; Tables

Advanced vehicle control systems; Connected vehicles; Freeways; Intelligent vehicles; Lane changing; Off ramps; Traffic simulation; Vehicle to vehicle communications

Cooperative vehicles control

Data and Information Technology; Highways; Operations and Traffic Management; Vehicles and Equipment

Transportation Research Board Annual Meeting 2019 Paper #19-06039

TRIS, TRB, ATRI

Dec 7 2018 9:27AM