A dual toll policy for maintaining risk equity in hazardous materials transportation with fuzzy incident rate

2020 ◽  
Vol 227 ◽  
pp. 107650
Author(s):  
Ginger Y. Ke ◽  
Huiwen Zhang ◽  
James H. Bookbinder
Keyword(s):  
Hazardous Materials ◽  
Hazardous Materials Transportation ◽  
Risk Equity ◽  
Incident Rate

scholarly journals Research on Route Optimization of Hazardous Materials Transportation Considering Risk Equity

2021 ◽  
Vol 13 (16) ◽  
pp. 9427
Author(s):  
Liping Liu ◽  
Jiaming Li ◽  
Lei Zhou ◽  
Tijun Fan ◽  
Shuxia Li
Keyword(s):  
Response Time ◽  
Emergency Response ◽  
Optimization Model ◽  
Hazardous Materials ◽  
Route Optimization ◽  
Hazardous Materials Transportation ◽  
Transportation Risk ◽  
Risk Equity ◽  
The Difference ◽  
The Government

The consequences of a hazmat accident can be catastrophic due to the characteristics of hazardous materials. Different from the models, which are constructed from the perspective of “government-carrier”, this paper considers the three objectives of the risk, the cost, and the compensation cost from the “government-carrier-public” perspective, so as to construct a route optimization model of hazmat transportation considering risk equity. Moreover, considering that the difference in regional emergency response time will significantly affect the risk, this research incorporates the emergency response time into the transportation risk assessment function, and realizes risk equity by minimizing the total compensation cost based on the difference in regional emergency response time. To solve the proposed model, a multi-objective genetic algorithm based on linear weighting is designed. The results obtained from the case study verify the necessity of considering the risk equity in the route optimization model of hazardous materials transportation and prove that the established model and algorithm can find an optimal route that meets the expectations of the government, the carrier, and the public.

scholarly journals Generalized route planning approach for hazardous materials transportation with equity consideration

2018 ◽  
Vol 46 (2) ◽  
pp. 33-46 ◽  
Author(s):  
Huo Chai ◽  
Rui-chun He ◽  
Xiao-yan Jia ◽  
Chang-xi Ma ◽  
Cun-jie Dai
Keyword(s):  
Route Planning ◽  
Hazardous Materials ◽  
Risk Difference ◽  
Hazardous Materials Transportation ◽  
Numerical Example ◽  
Transportation Risk ◽  
Evaluation Scheme ◽  
Risk Equity ◽  
Transportation Process ◽  
Equity Consideration

Hazardous materials transportation should consider risk equity and transportation risk and cost. In the hazardous materials transportation process, we consider risk equity as an important condition in optimizing vehicle routing for the long-term transport of hazardous materials between single or multiple origin-destination pairs (O-D) to reduce the distribution difference of hazardous materials transportation risk over populated areas. First, a risk equity evaluation scheme is proposed to reflect the risk difference among the areas. The evaluation scheme uses standard deviation to measure the risk differences among populated areas. Second, a risk distribution equity model is proposed to decrease the risk difference among populated areas by adjusting the path frequency between O-D pairs for hazardous materials transportation. The model is converted into two sub models to facilitate decision-making, and an algorithm is provided for each sub model. Finally, we design a numerical example to verify the accuracy and rationality of the model and algorithm. The numerical example shows that the proposed model is essential and feasible for reducing the complexity and increasing the portability of the transportation process.

scholarly journals How do the Risk Equity Techniques Affect on Intercity Road Network Accessibility? An Empirical Study

2020 ◽  
Vol 3 (2) ◽  
pp. p87
Author(s):  
Abbas Mahmoudabadi ◽  
Donya Nader
Keyword(s):  
Mathematical Models ◽  
Road Network ◽  
Hazardous Materials ◽  
Medium Size ◽  
Hazardous Materials Transportation ◽  
The North ◽  
Risk Equity ◽  
Risk Distribution ◽  
North Of Iran ◽  
Guilan Province

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.

Hazardous Materials Transportation by Road: Fuzzy-Theory-Based Routing Design

2013 ◽  
Vol 397-400 ◽  
pp. 696-699
Author(s):  
Peng Fei Li ◽  
Mao Xiang Lang
Keyword(s):  
Risk Analysis ◽  
Fuzzy Theory ◽  
Hazardous Materials ◽  
Minimum Risk ◽  
Hazardous Materials Transportation ◽  
Shortest Route ◽  
Routing Design ◽  
Fuzzy Risk Analysis

Firstly, the consequence of the accident was divided into several ranks. Then we can get the risk fund by the fuzzy risk analysis. Secondly, the stochastic number of every route was produced by the computer, and then the risk of every section can be got. Thirdly, the shortest route theory can be used to get the minimum risk routes. The rationality of the model and the feasibility of the algorithm are proved by the computation and analysis of the example.

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