Timely evacuation is crucial to disaster response, as people can avoid suffering and loss of lives when a major disaster happens. With the development of sharing economy, ridesharing has the advantage of reducing congestion, saving travel time, and optimizing transportation mode to improve disaster evacuation efficiency. The paper proposes to integrate the concept of ridesharing into evacuation and develops a mixed-integer programming model for this problem. A real-world case study based on Houston is used to validate the proposed model. A series of instances are designed to compare the evacuation efficiency using two indicators, evacuation percentage and average travel distance. Results reveal that increasing the number of vehicles to help carless individuals might not be the most efficient method in this model. Moreover, this model offers a specific response strategy based on different disaster scales, which not only develops a better evacuation plan for the people but also provides relief agencies insights on resource utilization.

翻译：及时疏散对于救灾至关重要,因为在发生重大灾害时,人们可以避免痛苦和生命损失。随着经济共享的发展,骑车共享的优势是减少拥堵,节省旅行时间,优化运输模式以提高灾害疏散效率。文件提议将搭车共享的概念纳入疏散,并针对这一问题开发一个混合型规划模式。在休斯顿基础上进行的一个真实世界案例研究被用于验证拟议的模式。一系列实例旨在用两个指标,即疏散百分比和平均旅行距离来比较疏散效率。结果显示,增加帮助无车者车辆的数量可能不是这一模式中最有效的方法。此外,这一模式提供了基于不同灾害规模的具体应对战略,不仅为人们制定了更好的疏散计划,而且还为救济机构提供了资源利用方面的见解。