Regional Solid Waste Planning with WRAP

by Yakir Hasit, (A.M.ASCE), Asst. Prof.; Dept. of Civ. Engrg. and Environmental Studies Inst., Drexel Univ., Philadelphia, Pa. 19104,
Dennis B. Warner, (M.ASCE), Project Engr.; Assoc. Project Dir., Water and Sanitation for Health Project, Camp Dresser, McKee Inc., Arlington, Va. 22209,

Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 3, Pg. 511-525

Document Type: Journal Paper


In spite of the abundance of mathematical models for solid waste management, planners and decision makers have been reluctant to use such models due to the difficulties in understanding and implementing them. An Environmental Protection Agency sponsored computer program, Waste Resource Allocation Program (WRAP), is aimed at this problem. WRAP greatly facilitates regional solid waste planning with its simple input requirements and clear output. By using Walker's fixed charge linear programming algorithm, WRAP occasionally finds global optima even to solid waste management schemes that are formulated as capacitated transshipment networks with concave costs and flows with losses. A case study using Region J in North Carolina is presented.

Subject Headings: Waste management | Solid mechanics | Solid wastes | Mathematical models | Recycling | Case studies | Decision making | Federal government | North Carolina

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