This paper deals with the problem of model transferability in the specific case of Logit models of gap-acceptance behavior. Transfer Scaling, Bayesian Updating and Combined Transfer Estimation are adopted as transfer methods, and the effectiveness of model transfer is evaluated, on the basis of experimental data collected at two priority intersections, using several indicators proposed in the travel demand modeling literature. The main conclusions are that the accuracy of the transferred models is generally similar to that of the locally estimated ones, and that the method known as Combined Transfer Estimation performs best among the tested approaches. These results are not significantly affected by the size of the sample of observations used for model transfer. Moreover, the potential impacts of the differences between transferred and locally estimated models on capacity estimates appear to be negligible for practical purposes.

Transfer and Updating of Logit Models of Gap-Acceptance and their Operational Implications

ROSSI, RICCARDO;MENEGUZZER, CLAUDIO;GASTALDI, MASSIMILIANO
2013

Abstract

This paper deals with the problem of model transferability in the specific case of Logit models of gap-acceptance behavior. Transfer Scaling, Bayesian Updating and Combined Transfer Estimation are adopted as transfer methods, and the effectiveness of model transfer is evaluated, on the basis of experimental data collected at two priority intersections, using several indicators proposed in the travel demand modeling literature. The main conclusions are that the accuracy of the transferred models is generally similar to that of the locally estimated ones, and that the method known as Combined Transfer Estimation performs best among the tested approaches. These results are not significantly affected by the size of the sample of observations used for model transfer. Moreover, the potential impacts of the differences between transferred and locally estimated models on capacity estimates appear to be negligible for practical purposes.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2448329
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 12
  • ???jsp.display-item.citation.isi??? 9
social impact