This paper presents a multi objective mixed integer location/routing model that aims to minimize
transportation cost and risks for large-scale hazardous waste management systems (HWMSs). Risks
induced by hazardous wastes (HWs) on both public and the environment are addressed. For this purpose,
a new environmental impact definition is proposed that considers the environmentally vulnerable ele-
ments including water bodies, agricultural areas, coastal regions and forestlands located within a certain
bandwidth around transportation routes. The solution procedure yields to Pareto optimal curve for two
conflicting objectives. The conceptual model developed prior to mathematical formulation addresses
waste-to-technology compatibility and HW processing residues to assure applicability of the model to
real-life HWMSs. The suggested model was used in a case study targeting HWMS in Turkey. Based on the
proposed solution, it was possible to identify not only the transportation routes but also a set of infor-
mation on HW handling facilities including the types, locations, capacities, and investment/operational
cost. The HWMS of this study can be utilized both by public authorities and private sector investors for
planning purposes.