Abstract
The merging area of the freeway is an area with a high incidence of traffic accidents. With the development of connected and automated vehicles (CAVs) and V2X technology, the traffic efficiency of freeway ramp areas has been significantly improved. However, current research mostly focuses on merging a single mainline lane and ramp, and there are few cases of multiple lanes. In this paper, we present a collaborative merging model with a rule-based lane-changing strategy in a V2X environment. First, the vehicle selects the appropriate gap to change lanes safely without affecting other vehicles. Meanwhile, we established a linear time discrete model to optimize the trajectory of vehicles in real-time. Finally, the proposed model and strategy were implemented in SUMO and Python. The simulation results showed that the merging model we proposed based on the lane-changing strategy had good performance in terms of the number of stops, average delay, and average speed.
Highlights
IntroductionThe reality is that mainline is usually multi-lanes, so this study aimed to deal with the case of multilane mainline merging areas
[25]: and adjustment zone, where we mainly focused on the zone, trajectory lane-changing and trajectory optimization zones
Vehicles and the traffic controller can exchange information with each other in time, and we divided the freeway into three zones
Summary
The reality is that mainline is usually multi-lanes, so this study aimed to deal with the case of multilane mainline merging areas. Due to unreasonable lane-changing and frequent acceleration or deceleration behavior, the on-ramp is a high incidence of traffic accidents and congestion. Recent work has shown the application of connected and automated vehicles (CAVs) and wireless communication in the on-ramp area [5,6]. Vehicle-tovehicle (V2V) communication enables the real-time exchange of information between vehicles, including speed, acceleration, and position, so that vehicles can coordinate to avoid rear-end and lateral collisions [8,9], thereby improving traffic efficiency. Compared with single-lane lanes, additional considerations are required for lane-changing operations in the case of multilane mainline merging areas. A suitable lane change method is necessary to improve traffic efficiency
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