Several emerging telematics technologies allow a new definition of the risk caused by the transport on road of hazardous material (hazmat), which can be more related to space and time varying factors. Since there are many varying factors (for example, the state of the road, of the weather, of the driver, of the hazardous material) which affects its degree, hazmat transport risk is by definition...

Singapore is the third largest oil-refining centre in the world, with a large petrochemical hub located at Jurong Island. In view of the increasing concern for transportation security, there is an urgent need to improve the way trucks carrying hazardous materials (HAZMATs) are being routed on urban and suburban road networks. Routing of such vehicles should not only ensure the safety of travele...

We study the problem of finding hazmat road transportation paths minimizing both the total risk of hazmat shipments and the total transportation cost, meanwhile guaranteeing a certain level of risk equity over the population. To ensure the selection of a set of paths that also guarantee an equitable spread of the risk over the population, we introduce a new similarity index. The problem is math...

This paper considers a bi-level hazmat transportation network design problem in which hazmat shipments have to be transported over a road network between specified origin-destination points. The bi-level framework involves a regulatory authority and hazmat carriers. The control variables for the regulatory authority are locations of hazmat response teams and which additional links to include fo...

In this work we consider the following hazmat transportation network design problem. A given set of hazmat shipments has to be shipped over a road transportation network in order to transport a given amount of hazardous materials from specific origin points to specific destination points, and we assume there are regional and local government authorities that want to regulate the hazmat transpor...

1 The hazmat network design problem (HNDP) aims to reduce the risk of transporting hazmat in the 2 network by enforcing regulation policies. The goal of reducing risk can increase cost for different 3 hazmat carriers. Since HNDP involves multiple parties, it is essential to take the cost increase of all 4 carriers into consideration for the implementation of the regulation policy. While we can ...

the capacitated vehicle routing problem (cvrp) is a well-known combinatorial optimization problem that holds a central place in logistics management. the vehicle routing is an applied task in the industrial transportation for which an optimal solution will lead us to better services, save more time and ultimately increase in customer satisfaction. this problem is classified into np-hard problem...