Combined variable speed limit and lane change guidance for secondary crash prevention using distributed deep reinforcement learning

C Peng, C Xu - Journal of Transportation Safety & Security, 2022 - Taylor & Francis
The primary objective of this paper is to develop a combined variable speed limit (VSL) and
lane change guidance (LCG) controller to prevent secondary crashes (SCs) and improve …

Methodological evolution and frontiers of identifying, modeling and preventing secondary crashes on highways

H Yang, Z Wang, K **e, K Ozbay, M Imprialou - Accident Analysis & …, 2018 - Elsevier
Secondary crashes (SCs) or crashes that occur within the boundaries of the impact area of
prior, primary crashes are one of the incident types that frequently affect highway traffic …

Real-time prediction and avoidance of secondary crashes under unexpected traffic congestion

H Park, A Haghani, S Samuel, MA Knodler - Accident Analysis & Prevention, 2018 - Elsevier
Abstract According to the Federal Highway Administration, nonrecurring congestion
contributes to nearly half of the overall congestion. Temporal disruptions impact the effective …

Bi-objective scheduling of fire engines for fighting forest fires: New optimization approaches

P Wu, F Chu, A Che, MC Zhou - IEEE transactions on intelligent …, 2017 - ieeexplore.ieee.org
It is challenging to perform emergency scheduling for fighting forest fires subject to limited
rescue resources (ie, vehicles with fire engines), since extinguishing each fire point should …

Spatial and temporal prediction of secondary crashes combining stacked sparse auto-encoder and long short-term memory

H Li, Q Gao, Z Zhang, Y Zhang, G Ren - Accident Analysis & Prevention, 2023 - Elsevier
Secondary crashes occur within the spatial and temporal impact area of primary crashes,
resulting in traffic delays and safety problems. While most existing studies focus on the …

Towards enhanced recovery and system stability: Analytical solutions for dynamic incident effects in road networks

W Yue, C Li, S Wang, Z Xu… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Traffic incidents are recognized as a key contributor to non-recurrent congestion, which
causes many negative effects in economy, environment, health and lifestyle. In this article …

Facility location-allocation problem for emergency medical service with unmanned aerial vehicle

Y Park, S Lee, I Sung, P Nielsen… - IEEE transactions on …, 2022 - ieeexplore.ieee.org
This paper models an operation problem of an unmanned aerial vehicle for the emergency
medical service (UEMS) system. The model is set up as a location-allocation problem. The …

Analysis of a stochastic switching model of freeway traffic incidents

L **, S Amin - IEEE Transactions on Automatic Control, 2018 - ieeexplore.ieee.org
This paper introduces a model for freeway traffic dynamics under stochastic capacity-
reducing incidents, and provides insights for freeway incident management by analyzing …

Online optimization with look-ahead for freeway emergency vehicle dispatching considering availability

H Park, D Waddell, A Haghani - Transportation research part C: emerging …, 2019 - Elsevier
Traditional emergency management studies have made resource allocation decisions to
serve the current emergency without knowing which future emergency will be occurring …

Random energy-efficient models for sustainable facility location subject to carbon emission, economical, capacitated and regional constraints

H Jia, Y Xu, G Tian, M Zhou, J Zhang, H Zhang - IEEE Access, 2018 - ieeexplore.ieee.org
An uncertainty facility location allocation (FLA) problem is a complex nonlinear optimization
problem. Currently, researchers have discussed the stochastic cost/profit issues of FLA …