Integrated Evacuation Network Optimization and Emergency Vehicle Assignment

The core idea of integrating the treatment of lane reversals and crossing elimination in evacuation network design is illustrated by the examples in Figure 1, which show how controlling lane entries and turning movements at intersections can create uninterrupted flow conditions for specific evacuation paths. The intersections must be expanded into subnetworks, as shown in Figure 2, to model an evacuation network design that uses lane-reversal and crossingelimination strategies. Figure 2 also illustrates how intermediate nodes are introduced into roadway sections to serve as origins of evacuation trips. The parameters, sets, and variables used in the model are listed below.