Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《China Journal of Highway and Transport》 2009-04
Add to Favorite Get Latest Update

Finite Weibull Mixture Distribution Model of VOT Distribution Forecasting

YU Li-jun (School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510641,Guangdong,China)  
Aimed at problem that data of complicated value of time(VOT) can not be fitted by simple distribution mixture functions frequently,the finite Weibull mixture distribution model for modelling VOT distribution was proposed.Expectation maximum(EM) algorithm was used to deduce the interative formulae of the model and the formulae were applied to fitting of VOT.In order to explore fitting characteristics of the model on complicated data distribution,simulated comparisons were carried out and the model based on EM algorithm was applied to analysis and calculation of urban passenger traffic mode sharing ratio.Results show that the model based on the EM algorithm is the optimal choice.The model can be effectively applied to VOT distribution modelling and forecasting of traffic mode sharing ratio.
【Fund】: 国家高技术研究发展计划(“八六三”计划)项目(2006AA11Z211)
【CateGory Index】: U491
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved