Study on Lane-Based Network Model for Regional Emergency Evacuation Routing Plans

Because of the shortcomings existed in traditional node-link model, this paper presents a lane-based network model. The objective of the model is minimizing the whole evacuate cost, and the constraint conditions are eliminating crossing-conflicts, reducing confluence, flow conservation and non-negative, restricting the traffic capacity of the nodes as well as arcs, and so on. The model is aimed to assist traffic decision-makers to utilize the available road infrastructure to the greatest extent through some traffic management and control measures, and also to improve the whole evacuation ability. Finally, after researching the studying algorithm of the model, a mixed- integer programming solver and the software of Lingo are utilized to derive the solution which shows that the model and algorithm both are effective.