Impact of Penetrations of Connected and Automated Vehicles on Lane Utilization Ratio

Wang, Xiaoyuan; Liu, Shijie; Shi, Huili; Xiang, Hui; Yang, Ziqiang; He, Guowen; Wang, Hanqing

doi:10.3390/su14010474

Cited by 5 publications

(2 citation statements)

References 32 publications

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“…As the field of autonomous driving and wireless communication technology matures, more and more attention has been paid to the research and development of connected automated vehicles [1][2][3][4]. Relevant research [1] shows that in the next 5 years around 10% of vehicles on the road will be CAVs, and in the next 30 years the proportion will rise to 75%.…”

Section: Introductionmentioning

confidence: 99%

Traffic Flow State Analysis Considering Driver Response Time and V2V Communication Delay in Heterogeneous Traffic Environment

Guan

Wang

2023

Sustainability

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In order to study the heterogeneous traffic environment generated by connected automated vehicles (CAVs) and human-driven vehicles (HDVs), the car-following model and basic graph model of the mixed traffic flows of connected automated vehicles and human-driven vehicles are constructed. Considering driver response time and the communication delay of the connected automated vehicles control system, the three-parameter variation law of traffic flow is summarized to solve the traffic congestion problem in heterogeneous traffic environments. Firstly, the probability of six scenarios in queues of cooperative adaptive cruise control (CACC) vehicles, adaptive cruise control (ACC) vehicles, and human-driven vehicles in heterogeneous traffic environments is analyzed. The car-following model is defined, and the parameters are calibrated, and then a fundamental diagram model of traffic flow balance is derived. On this basis, considering driver response time and the communication delay of the linear controller, a car-following model considering multi-party delay is updated and established, and the heterogeneous traffic flow analysis of the two types of delays in the model is carried out. Finally, the microscopic simulation environment is constructed based on SUMO 1.17.0 (Simulation of Urban Mobility) software. The results show that when the permeability (the proportion of connected automated vehicles in a traffic stream) exceeds 0.6, CAVs account for the main part in the heterogeneous traffic, which has a positive impact on the maximum flow and the optimal density and can effectively improve the maximum capacity of the road. The simulation results show that the updated car-following model is reasonable and accurate in dealing with driver response time and V2V communication delay.

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Section: Introductionmentioning

confidence: 99%

Traffic Flow State Analysis Considering Driver Response Time and V2V Communication Delay in Heterogeneous Traffic Environment

Guan

Wang

2023

Sustainability

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“…The list of possible policies is quite long. The most important ones are as follows: automated and shared vehicles [29,30], electric vehicles and related energy and pollution impact [31], network design and resilience [32], etc. Given the current pandemic context, an important theme is to study how to adapt public transport services to health emergency situations and how to recover pre-pandemic traffic flows in the public transport sector.…”

mentioning

confidence: 99%

A Multimodal Transport Model to Evaluate Transport Policies in the North of France

Kilani¹,

Diop

Wolf

2022

Sustainability

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We developed a passenger transport model for the North of France and used it to discuss the impacts of some policies focusing on the limitations of polluting gas emissions and congestion. The model is calibrated for the North of France and includes both urban and intercity trips. Four transport modes are considered: walking, biking, public transport and private cars. To some extent, the combination of these modes is possible. The model is calibrated to match mode shares and the dynamic of congestion along a full day. The simulations are conducted within the MATSim framework. We evaluate the impacts, on traffic flows and polluting gas emissions, of two pricing reforms: free public transport and road pricing in city center of Lille (the main metropolitan area in the study region). Free public transport yields a significant modal shift towards public transport, resulting in a reduction in the usage of private cars. The road pricing scheme we have considered results in similar impacts but with limited magnitude. Overall, a significant reduction in congestion and emissions of pollutant gases can be obtained by applying convenient pricing reforms. Since we use an agent-based model, we are able to identify the specific location of the main impacts on the network.

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Research on multi-lane energy-saving driving strategy of connected electric vehicle based on vehicle speed prediction

Pan,

Li,

Wang

et al. 2023

Green Energy and Intelligent Transportation

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Impact of Penetrations of Connected and Automated Vehicles on Lane Utilization Ratio

Cited by 5 publications

References 32 publications

Traffic Flow State Analysis Considering Driver Response Time and V2V Communication Delay in Heterogeneous Traffic Environment

Traffic Flow State Analysis Considering Driver Response Time and V2V Communication Delay in Heterogeneous Traffic Environment

A Multimodal Transport Model to Evaluate Transport Policies in the North of France

Research on multi-lane energy-saving driving strategy of connected electric vehicle based on vehicle speed prediction

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