Fitting distribution of freeway incident duration and accelerated failure time modeling

被引：0

作者：

Cong H. ^{[1
,2
]}

Wang J. ^{[1
]}

Fang S. ^{[1
]}

Tong S. ^{[1
]}

机构：

[1] Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University

[2] Road Traffic Safety Research Centre of the Ministry of Public Security

来源：

Tongji Daxue Xuebao/Journal of Tongji University | 2011年 / 39卷 / 10期

关键词：

Accelerated failure time; Duration; Fitting distribution; Freeway; Incident;

D O I：

10.3969/j.issn.0253-374x.2011.10.010

中图分类号：

学科分类号：

摘要：

Distribution model choice, parameters' estimation and measures of goodness of fit were carried out, and the best distribution fitting for incident duration data was Log-Logistic distribution. Accelerated failure time (AFT) modeling was employed based on survival analysis and Log-Logistic distribution. Then stepwise by Akaike information criterion (AIC) was used to find the best group of factors for the prediction of freeway incident duration. The test result indicates that AFT model can represent actual incident duration and accept different distribution and missing data.

引用

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页码：1468 / 1472

页数：4

共 7 条

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