An integrated framework for temporary disaster debris management sites selection and debris collection logistics planning using geographic information systems and agent-based modeling

Abstract

Effective temporary debris management sites (TDMS) planning requires the consideration of its subsequent impact on debris collection logistics. This study establishes an integrated framework to determine the optimal locations for TDMSs that meet geographic requirements while minimizing the social and economic impacts imposed on the community due to uncollected debris. A geographic information system (GIS) was used to locate candidate TDMSs based on geographic parameters set forth by governing agencies. To consider the subsequent impact of TDMSs on debris collection, an agent-based model was constructed to evaluate post-disaster debris removal performance with varying TDMSs planning scenarios. Using the AnyLogic Optimization engine, the selection of TDMSs locations was optimized to minimize both overall debris collection time and subsequent negative impacts of uncollected debris on the public. The validity of the proposed framework was demonstrated through its application for determining optimal TDMSs locations in Liberty County, Florida, in response to Hurricane Michael where vegetative debris (i.e., potential fire hazards) and the debris within the urban areas are prioritized for collection. Compared to the actual debris collection time, the selected near-optimal TDMS locations resulted in a decrease in the total debris collection time from 156 to 112 days, with vegetative debris and debris located within the urban areas being collected within 60 and 70 days, respectively. The proposed framework will enable planners to (i) evaluate different TDMS planning scenarios in order to inform debris resource planning and management and (ii) prioritize the collection of specific types of debris based on their emergency/recovery preferences.