Collaborative Control Optimization on Reversible Lanes in Intersection Group under Intelligent Vehicle Infrastructure Cooperative System

Guiliang Zhou,Pengsen Hu,Xu Bao,Yao Liu,Lina Mao,Yuke Dai,Zhuping Zhou

doi:10.1155/2020/8843513

Abstract

Based on the Intelligent Vehicle Infrastructure Cooperative System (IVICS), the paper firstly analyzes the operating characteristics of the intersection group under real-time reversible lanes from the capacity; secondly, the signal phase sequence and signal timing parameters of the intersection are designed, and the green wave control is designed based on the phase difference model. The scheme provides traffic flowing in this section with a continuous green light signal. Finally, taking the intersection of Yongle East Road in Wuxi, Jiangsu Province as an example, it optimizes and controls the green wave of the intersection group and verifies the effectiveness of the phase difference model using the evaluation indicators of the number of stops, green wave speed, traffic capacity, and saturation flow. The results show that the optimization of the number of stops is 9.5% and the vehicle speed is optimized by 5.3%. The intersection capacity and saturation flow are greatly improved.

Highlights

IntroductionIn order to achieve efficient and smooth traffic flow, this paper designs a collaborative control optimization method for real-time reversible lane intersection groups under the Intelligent Vehicle Infrastructure Cooperative System (IVICS)
Intersections in the urban road network are interacting
Collaborative Optimization of Real-Time Reversible Lanes and Intersection Group Signal e traditional signal phase scheme fails to take into account the real-time changes in the traffic flow. e fixed signal phase sequence causes a waste of traffic resources during offpeak hours and traffic congestion during peak hours. e general reversible lane signal phase scheme only changes the phase sequence in a fixed time period, which has certain effects on alleviating tidal traffic congestion, but it is difficult to play an effective role in congestion at other times. e real-time reversible lanes of the Intelligent Vehicle Infrastructure Cooperative System (IVICS) consider the real-time running status of the traffic flow and perform real-time collaborative control of the traffic flow at the intersection to improve the efficiency of the traffic flow

Summary

Introduction

In order to achieve efficient and smooth traffic flow, this paper designs a collaborative control optimization method for real-time reversible lane intersection groups under the Intelligent Vehicle Infrastructure Cooperative System (IVICS). 3. Collaborative Optimization of Real-Time Reversible Lanes and Intersection Group Signal e traditional signal phase scheme fails to take into account the real-time changes in the traffic flow. E change of the flow ratio of the left-turn phase after the real-time dynamic reversible lane is implemented in the IVICS is YL′. En, the calculation formula of the optimal signal period of the intersection after setting real-time dynamic reversible lanes under the IVICS is c0′. At this time, the key phase of the intersection is the sum of the straight-forward and left-turn phases:. If the queued vehicles cannot fully pass through the intersection, a secondary queue or stranded queue will be formed, and the queue length is Lim−i1n,i

It can be seen from the queuing time interval that

Green wave control

Before optimization Optimized

Findings

Conclusion