Imperial College London
Alternate

Dr Simon Hu

Faculty of Engineering, Department of Civil and Environmental Engineering

Honorary Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 6024j.s.hu05

 
 
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Location

 

422Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Tang:2021:10.1109/tits.2020.2978227,
author = {Tang, C and Hu, W and Hu, S and Stettler, MEJ},
doi = {10.1109/tits.2020.2978227},
journal = {IEEE Transactions on Intelligent Transportation Systems},
pages = {2956--2968},
title = {Urban traffic route guidance method with high adaptive learning ability under diverse traffic scenarios},
url = {http://dx.doi.org/10.1109/tits.2020.2978227},
volume = {22},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - With the rapid development of urbanization, the problem of urban traffic congestion has become increasingly prominent. Dynamic route guidance promises to improve the capacity of urban traffic management and mitigate traffic congestion in big cities. In the design of simulation-based experiments for most dynamic route guidance methods, the simulation data is generally estimated from a specific traffic scenario in the real-world. However, highly dynamic traffic in the city implies that traffic scenarios in real systems are diverse. Therefore, if a route guidance method cannot adjust its strategy according to the spatial and temporal characteristics of different traffic scenarios, then it cannot guarantee optimal results under all traffic scenarios. Thus, ideal dynamic route guidance methods should have a highly adaptive learning ability under diverse traffic scenarios so as to have extensive improvement capabilities for different traffic scenarios. In this study, an A trajectory rejection method based on multi-agent reinforcement learning (AR²) is proposed; the method integrates both system and user perspectives to mitigate traffic congestion and reduce travel time (TT) and travel distance (TD). First, owing to its adaptive learning ability, the AR² can comprehensively analyze the traffic conditions for different traffic scenarios and intelligently evaluate the road congestion index from a system perspective. Then, the AR² determines the routes for all vehicles from user perspective according to the road network congestion index. An extensive set of simulation experiments reveal that, under various traffic scenarios, the AR² can rely on its adaptive learning ability to achieve better traffic efficiency. Moreover, even in cases where many drivers are not fully compliant with the route guidance, the traffic efficiency can still be improved significantly by AR².
AU  - Tang,C
AU  - Hu,W
AU  - Hu,S
AU  - Stettler,MEJ
DO  - 10.1109/tits.2020.2978227
EP  - 2968
PY  - 2021///
SN  - 1524-9050
SP  - 2956
TI  - Urban traffic route guidance method with high adaptive learning ability under diverse traffic scenarios
T2  - IEEE Transactions on Intelligent Transportation Systems
UR  - http://dx.doi.org/10.1109/tits.2020.2978227
UR  - https://ieeexplore.ieee.org/document/9057400
UR  - http://hdl.handle.net/10044/1/78697
VL  - 22
ER  -
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