ABSTRACT
Chapter 8 presents strategies that can be used to influence local authorities’ supply of space in the evacuation route system or evacuees’ demand for that space. One strategy for reducing unnecessary demand involves prior education and clear emergency communication. Another method involves demand phasing, which staggers evacuation departures. From the supply side, evacuation management strategies are intended to increase capacity in the outbound direction, smooth traffic flow, or otherwise reduce congestion—and thus evacuation time. This chapter examines emerging knowledge and practices for capacity management through the closure of roads and ramps, the incorporation of shoulders and other lanes for use as evacuation routes, the use of contraflow lanes or facilities, and modifying operations at intersections, such as turning restrictions, modified signal timing, and alternative intersection control (e.g., police directed). Finally, traffic system monitoring and communicating travel information is discussed.
