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Based on descriptions of railway transportation and logistics service net, we establish railway transportation and logistics resource allocation model, and analysis on specific cost function, delay time function and profit function expression form in the model. Using a railway transportation and logistics model to distribute market demand and railway capacity effectively. It is significantly important...
If a transit vehicle breaks down on a schedule trip, there are some vehicles in the system need to serve this trip and the former schedule must be changed. For solving the urgency vehicle routing problem with disruption that may be vehicle breakdowns or traffic accidents in the logistics distribution system, through the analysis of the problem and the disruption measurement, the mathematics model...
For solving the vehicle routing disruption problem which is caused by vehicles breakdown or traffic accidents in the logistic distribution system, an urgency vehicle scheduling scheme is established based on the theory of disruption management. According to the characteristics of the problem, Lagrangian relaxation approach is applied to simplify and divide the problem into two parts. The column generation...
For solving the vehicle routing problem with disruption that may be vehicle breakdowns or traffic accidents in the logistics distribution system, the disruption recovery strategies and solutions are given based on the theory of disruption management. Disruption measurements are given and the disruption management model is built. For the attributes of the vehicle routing problem with disruption, a...
In order to cut down the accident rate in hazardous materials transportation, three aspects are discussed in this paper: human factors, material factors and environmental factors. Then, an indexing system and integrated assessment model are established based on fuzzy mathematics and analytic hierarchy process (AHP). Each assessment value of human-materials-environment factors can be calculated by...
As the identification of the development relationship between transportation industry and economic played an important role in guiding the transportation and economic growth, this paper first made quantitative studies on the adaptation and coordination relationship of the cyclical fluctuations between the transportation and economic indicator time series, through the sample cross covariance function...
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