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Level crossings are defined as passive and automated ones. Traffic risk of the automated level crossing is analyzed and estimated. The function and the dependability of the level crossing control system are modeled based on the stochastic Petri nets. The relationship between the national statistic data and the densities of the road users and railway train is set up and a mathematical function is used...
Risk assessment is applied to the study of urban waterlogging. A series of methods which are suitable for the risk study of urban waterlogging are presented. Based on the hydraulic model built by InfoWorks Collection System software, the situation of normal state/ pump failure under special return period is simulated. Also, the seeper depth and recoverability theory are selected as the quantitative...
In order to explore the generation mechanism of adverse selection risk in the process of expressway concession right transfer, this paper establishes information screening model from the angle of main body behavior, using the game theory and the principles of information economics. Through the analysis on the model, it puts forward to some suggestion about risk prevention, namely: an improved contract...
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