Abstract
Due to existing risk on hazardous materials transportation, it is essential to avoid risk agglomeration over the specific edges which are frequently used on the intercity road network. Therefore, local and/or national authorities are dealing with distributing risk over the network while risk distribution may affect on the network accessibility. The aim of this study is to propose a procedure and develop mathematical models to distribute Hazmat transport risk, named risk equity, on the intercity road network and investigate the effects on the network accessibility. Accessibility is defined as dividing transport demand by distance, where the Min (Max) risk distribution technique is utilized for risk equity over the network. The effects have been investigated on a medium size of intercity road network in Guilan province, at the north of Iran. The proposed procedure and mathematical models have been run using experimental data including 46 nodes and 126 two-way edges including Hazmat Origin-Destination matrix. The results revealed that risk distribution technique has significant effects on network accessibility in which nodes’ accessibilities are statistically affected by risk equity models.
Highlights
1.1 Hazardous Materials According to US Department of Transportation, hazardous materials (Hazmat for short) include any material or substance that is capable of damaging humans, property, and environment
The well-known method of risk management is to determine the safest path on Hazmat transportation which known as the term of “Hazmat routing problem”
It is concluded that the routing in Hazmat transportation does not necessarily mean finding the shortest route, but it should be attempted to determine the safest route and considering other transport attributes as well (Carotenuto et al, 2007). 1.3 Hazmat Risk Equity It is time to define another concept in Hazmat transportation known as “risk equity”
Summary
Abbas Mahmoudabadi1* & Donya Nader Department of Industrial Engineering, MehrAstan University, Guilan, Iran 2 Department of Industrial Engineering, Kooshyar University, Guilan, Iran * Abbas Mahmoudabadi, Department of Industrial Engineering, MehrAstan University, Guilan, Iran
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