Abstract
A transportation system is an important material base for implementing timely rescue and emergency evacuation after disasters in urban areas. In order to reduce disaster risks and develop sustainable transportation systems, it is important to improve their resilience and ensure their reliability. This paper mainly studies pre-disaster retrofit decisions for sustainable transportation systems in urban areas. As the optimization goal, pre-disaster retrofit costs and post-disaster restoration costs under constraints of post-disaster system connectivity, travel time reliability, and post-disaster link capacity are taken into account to construct a bi-level stochastic programming model. A method based on the simulated annealing algorithm and Frank–Wolfe algorithm is used to solve the problem. The case study shows that the calculation is quick, and the result is reasonable. The study result proves that the method proposed in this paper can provide an effective solution to such problems.
Highlights
Disasters happen accidentally or naturally and can seriously threaten human life and critically hinder social economic development [1]
By analogy to the transportation field, this paper proposes that resilience is the ability of sustainable transportation systems to engage in emergency response, disaster risk mitigation, and post-disaster recovery, which reflects the ability to resist [8], respond to, and recover from disasters
It is necessary to select links [18] of transportation systems for pre-disaster retrofit in order to cope with various disaster scenarios that could occur in disaster risk areas
Summary
Disasters happen accidentally or naturally and can seriously threaten human life and critically hinder social economic development [1]. By analogy to the transportation field, this paper proposes that resilience is the ability of sustainable transportation systems to engage in emergency response, disaster risk mitigation, and post-disaster recovery, which reflects the ability to resist [8], respond to, and recover from disasters. It is necessary to select links [18] of transportation systems for pre-disaster retrofit in order to cope with various disaster scenarios that could occur in disaster risk areas. For urban disaster risk reduction [19,20] and sustainable development of transportation systems, this paper studies pre-disaster retrofit decisions for transportation systems in urban areas. To obtain the maximum retrofit effect with the minimum cost, it is important to develop a sustainable transportation system for post-disaster rescue, evacuation, material transportation, and recovery.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
