This paper considers a multi-depot heterogeneous vehicle routing problem (MDHVRP) with time windows, which is very crucial for hazardous materials transportation. For this reason, we formalize as multi-objective MDHVRP optimization model, where the actual load dependent risk of transportation considered. To solve problem, propose hybrid evolutionary algorithm (HMOEA) and two-stage (TSA). In add...

OBJECTIVES To present a dataset concerning acute releases of hazardous chemicals in Poland in 2005 in the context of the HSEES system implemented in Poland. MATERIAL AND METHODS ATSDR, as the coordinator of the HSEES system, determined the kind and scope of data to be collected. In Poland, the fire department's reports were the main source of information on chemical emergencies. RESULTS In ...

Assessment and Management of Health Safety Risks in the Transportation Hazardous Materials Using TRRI Modeling with PHAST Pathfinder Tehran (Case Study: Gasoline Transportation)

At a large research laboratory facility the management and control of hazardous materials, and their subsequent wastes can be an unmanageable task. Environmental regulations, mandated by the Resource Conservation and Recovery Act of 1976, established a Federal program to provide comprehensive regulation of hazardous solid waste materials from their generation time to their disposal. In an effor...

Since 2001, the Louisiana Department of Health and Hospitals (LDHH) has participated in the Hazardous Substances Emergency Events Surveillance (HSEES) system. In 2001, there were 815 events qualified for HSEES surveillance. Data for each event was gathered and analyzed. During these hazardous substances events, there were 1164 chemicals released resulting in injuries to 63 people, most with res...

In terms of ecology, economy and society, the development of public transportation networks is a major issue. Essentially the transportation of hazardous materials can have negative impact on human health and the environment quality. The urban networks must increase their quality in terms of punctuality and vehicle frequency to improve its attractiveness while decreasing the management cost. In...

Undesirable consequences of dangerous goods incidents can be mitigated by quick arrival of specialized response teams at the accident site. We present a novel methodology to determine the optimal design of a specialized team network so as to maximize its ability to respond to such incidents in a region. We show that this problem can be represented via a maximal arc-covering model.We discuss two...

Due to catastrophic consequences of accidents by hazardous materials (hazmat) transportation, a risk-averse approach for routing is appropriate for risk mitigation. In this paper, we consider spectral risk measures, which are coherent and more general than existing approaches such as conditional value-at-risk. In spectral risk measures, one can define the spectrum function precisely to reflect ...

The recent US Commodity Flow Survey data suggest that transporting hazardous materials (HAZMAT) often involves multiple modes, especially for long-distance transportation. However, not much research has been conducted on HAZMAT location and routing on a multimodal transportation network. Most existing HAZMAT location and routing studies focus exclusively on single mode (either highways or railw...