Mohd Rapik Saat

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Keywords: Highway-rail grade crossings High-speed rail Freight rail United States shared corridors a b s t r a c t This study presents an overview of the challenges of grade crossings to shared high-speed rail (HSR) passenger and heavy-axle-load (HAL) freight operations in the U.S., as well as an in-depth analysis of the relevant research to date, through(More)
The performance metric for tank cars and other hazardous materials vehicles involved in accidents has generally been conditional probability of release given involvement in an accident. This metric considers the probability of a release event occurring but does not take into account the quantity of product lost in a release incident. In this paper, a new(More)
Transportation Research Record: Journal of the Transportation Research Board, No. 2289, Transportation Research Board of the National Academies, Washington, D.C., 2012, pp. 154–163. DOI: 10.3141/2289-20 Analysis of the causes of train accidents is critical for rational allocation of resources to reduce accident occurrence in the most cost-effective manner(More)
North America railways offer safe and generally the most economical means of long distance transport of hazardous materials. Nevertheless, in the event of a train accident releases of these materials can pose substantial risk to human health, property or the environment. The majority of railway shipments of hazardous materials are in tank cars. Improving(More)
Millions of carloads of hazardous materials are transported annually throughout the North American railway network. The risk of hazardous materials release incidents makes railway transportation safety a high priority. A number of strategies have been implemented or are in development to reduce the risk. Each risk reduction strategy has a particular effect(More)
North American freight railroads are expected to experience increasing capacity constraints across their networks. To help plan for this increased traffic, railroads use simulation software to analyze the benefits of capacity expansion projects. Delay increases exponentially with volume as individual lines and the network become more saturated with traffic.(More)
Rail transportation plays a critical role to safely and efficiently transport hazardous materials. A number of strategies have been implemented or are being developed to reduce the risk of hazardous materials release from train accidents. Each of these risk reduction strategies has its safety benefit and corresponding implementation cost. However, the cost(More)
22 23 Implementation of highway-rail grade crossing warning systems, educational programs and 24 research on crossings have all contributed to a steady reduction in the risk to highway users of 25 grade crossings over the past several decades. Much less attention has been given to 26 understanding the effect of grade crossings on train safety and risk.(More)
An important aspect of railroad environmental risk management involves tank car transportation of hazardous materials. This paper describes a quantitative, environmental risk analysis of rail transportation of a group of light, non-aqueous-phase liquid (LNAPL) chemicals commonly transported by rail in North America. The Hazardous Materials Transportation(More)