ABSTRACT
Routing model ....................................................................................... 158 7.5 Optimization-guided Hierarchical Planning and Clustering
algorithm ................................................................................................ 160 7.5.1 Brief overview ........................................................................... 160 7.5.2 Hierarchical planning ...............................................................161 7.5.3 Route management procedure ................................................ 163
7.5.3.1 Asserting the fuel feasibility of routes .................... 163 7.5.3.2 Constructing helicopter itineraries ......................... 163
7.6 Emergency scenarios ............................................................................ 164 7.6.1 An earthquake scenario ........................................................... 164
7.6.1.1 Description of the scenario ....................................... 164 7.6.1.2 Scenario analysis ........................................................ 165
7.6.2 A ood scenario .........................................................................167 7.6.2.1 Description of the scenario ........................................167 7.6.2.2 Scenario analysis ........................................................ 168
7.7 Conclusion ............................................................................................. 171 Acknowledgment ........................................................................................... 171 References ........................................................................................................ 172
7.1 Introduction Disasters have occurred with increasing frequency and intensity during the last decade, which has required more transportation means to cover larger affected areas. With rising transportation costs and increased vehicle capacity requests, the logistics of disaster relief consumes an important amount of postdisaster resources. Consequently, the activities of relief materials distribution and wounded evacuation, which comprise “the last mile distribution and pickup problem” (Balcik et al. 2008), need to be carried out efciently. It is conjectured that eet size minimization and optimized vehicle routing in disaster relief could reduce relief costs by about 15% (Stapleton et al. 2009). Therefore, introducing more efcient models that deal with this set of activities is economically important.
