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Yu Ying, Wang Qi-lin, Tian Jin-yue. Forecast model of expressway maintenance cost[J]. Journal of Traffic and Transportation Engineering, 2007, 7(3): 76-79.
Citation: Yu Ying, Wang Qi-lin, Tian Jin-yue. Forecast model of expressway maintenance cost[J]. Journal of Traffic and Transportation Engineering, 2007, 7(3): 76-79.
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Forecast model of expressway maintenance cost

  • School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

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  • Author Bio:

    Yu Ying(1957-), female, associate professor, +86-511-8791915, yuying57@hotmail.com

  • Received Date: 2006-12-10
  • Publish Date: 2007-06-25
    Abstract
  • In order to decrease expressway maintenance cost, the mathematic model between maintenance cost and the factors of traffic flow and road length was established by using the management theory of marginal cost, aimed at preventive maintenance and special project maintenance for asphalt pavement on expressway, the marginal cost expression of every factor was derived by using statistical method, the concepts of marginal cost of expressway maintenance management and maintenance elastic index were first expressed, and a forecast model of expressway maintenance cost was established. With the model, the elastic indices of traffic flow and road length relating to maintenance cost were calculated, and the economic indices of expressway maintenance cost relating to traffic flow were analyzed. Computation result shows that traffic flow and road length are the primary influence factors on expressway maintenance cost, there is logarithmic change relationship between road length and expressway maintenance cost, and expressway maintenance average cost decreases with traffic flow increase.

     

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