SIMULTANEOUS ROUTING AND SITING FOR HAZARDOUS-WASTE OPERATIONS

This paper presents a mathematical model for the optimal simultaneous siting and routing of hazardous-waste transport, storage. and disposal operations. Siting hazardous-waste disposal facilities and the subseq uent routing of hazardous waste from multiple points of origin is a co mplex problem involving environmental engineering, economic, and safet y issues. The model presented explicitly considers hazardous-waste rou ting and operational costs in the facility siting process. The formula tion presented represents a linear flow model driven by both cost and fisk considerations. To demonstrate this model, an example using a hyp othetical siting and transportation network for a 10-month planning ho rizon is presented. In addition, a multiobjective formulation of the m odel is formulated and solved for incorporating risks associated with the transport, storage, and disposal of hazardous waste. The model can be used to aid engineers and local and state agencies in the siting o f hazardous-waste facilities and in evaluating alternative routing and siting policies with respect to cost and risk.