Evacuation traffic optimization affected by urban waterlogging

Jinhua Du; Jialin Liu; Zheng Liu; Xingang Li

doi:10.1117/12.3015729

20 February 2024 Evacuation traffic optimization affected by urban waterlogging

Jinhua Du, Jialin Liu, Zheng Liu, Xingang Li

Proceedings Volume 13064, Seventh International Conference on Traffic Engineering and Transportation System (ICTETS 2023); 130641Y (2024) https://doi.org/10.1117/12.3015729
Event: 7th International Conference on Traffic Engineering and Transportation System (ICTETS 2023), 2023, Dalian, China

Abstract

Urban waterlogging is often accompanied by rainfall, to study the impact of urban waterlogging on evacuation traffic optimization, this paper introduces the equation of "rainfall intensity-waterlogging depth-free-flow speed", and proposes a dynamic loading link transmission model(LTM) considering the impact of rainfall and waterlogging, and designs a phased algorithm to address the problem of time-varying free-flow speed caused by differences in rainfall intensity and dynamic changes in waterlogging depth. Taking the Nguyen-Dupius road network as an example, the results show that: with the increase in rainfall intensity, the growth rates of total travel time and network clearance time increase gradually, while the growth rates gradually decreased with the increase in waterlogging depth; The saturation in water-logged links is higher than that in water-free links, and congestion is more likely to occur in case of heavy rainfall and severe waterlogging.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jinhua Du, Jialin Liu, Zheng Liu, and Xingang Li "Evacuation traffic optimization affected by urban waterlogging", Proc. SPIE 13064, Seventh International Conference on Traffic Engineering and Transportation System (ICTETS 2023), 130641Y (20 February 2024); https://doi.org/10.1117/12.3015729

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