Abstract
The performance metric for tank cars and other hazardous materials vehicles involved in accidents has generally been conditional probability of given involvement in an accident. This metric considers the probability of a event occurring but does not take into account the quantity of product lost in a incident. In this paper, a new metric termed release is introduced; it is defined as the expected value of the quantity lost from a tank car given that it is in an accident. The quantity of product lost varies depending on the part of the car that is damaged in an accident; consequently, use of risk can affect how different modifications in tank car design are considered. The metric was developed in terms of tank-damage-caused and non-tank-damage-caused releases. It was found that tank-damage-caused releases had a higher risk than non-tank-damage-caused releases. Important elements considered are the probabilities of and the expected quantities of release...
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Schedule a callMore From: Transportation Research Record: Journal of the Transportation Research Board
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