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Transferability of intercity disaggregate mode choice models in Canada

 

作者: Walid M. Abdelwahab,  

 

期刊: Canadian Journal of Civil Engineering  (NRC Available online 1991)
卷期: Volume 18, issue 1  

页码: 20-26

 

ISSN:0315-1468

 

年代: 1991

 

DOI:10.1139/l91-003

 

出版商: NRC Research Press

 

数据来源: NRC

 

摘要:

In many transportation studies, the time span of data collection, model development, and analysis is often too long to be responsive to the needs of policy analysts and decision makers. This problem is often exacerbated in situations with severely constrained analysis resources. Therefore, it is often useful totransfera model from one area to another. Model transfer is defined as the application of a model developed in one area to describe the corresponding behavior in another area. This paper examines the transferability of a class of models used in intercity travel demand analysis. Specifically, disaggregate mode choice models of the multinomial logit type are developed for two regions in Canada, and some established measures of transferability are applied to assess the potential of calibrating these models in one region and applying them in the other. Comparison of mode choice models estimated on data sets from the two regions yielded inconclusive results regarding model transferability. In general, transferred models were found to be 18–23% less accurate than local models in predicting modal shares. Adjusting models' parameters to reflect observed modal shares in the application context improved the predictive ability of the models by about 10%.Key words: transferability, mode choice, disaggregate, travel behavior, multinomial logit, intercity.

 

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