• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 22 Issue 6
Mar.  2010
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Article Contents
JING Yun, WANG Ciguang, XUE feng, MU feng. Estimation Method of Humping Time in Marshalling Yard[J]. Journal of Southwest Jiaotong University, 2009, 22(6): 900-905.
Citation: JING Yun, WANG Ciguang, XUE feng, MU feng. Estimation Method of Humping Time in Marshalling Yard[J]. Journal of Southwest Jiaotong University, 2009, 22(6): 900-905.

Estimation Method of Humping Time in Marshalling Yard

  • Received Date: 10 Nov 2008
  • Publish Date: 20 Jan 2010
  • To solve the problem that the humping time for trains is highly uncertain during the break up operation in marshalling yard,a regression model was built for interval estimation of the humping time,in which the humping time for a train is used as the dependent variable and the number of cuts in break up operation as the independent variable.With the obtained interval estimate value,the humping time of each train is expressed as a fuzzy set to solve for its λ-cut set and obtain the point estimate value of the humping time.The result of a case study involving 16 trains for hump operation shows that the estimation error of the point estimate value obtained by the model is 50% lower than that estimated by the current humping time standard.

     

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