A model of route perception in urban road networks
ATIS and new technologies are attracting increasing attention towards understanding and modeling the behavior underlying drivers' route choice. The new approach to route choice modeling is also having a significant impact on network assignment models, traditionally based on simple hypotheses of route choice. Models based on explicit route enumeration, allowing more realistic behavioral assumptions, were recently proposed E. Cascetta, F. Russo, A. Vitetta [Preprint of the Eighth IFAC Symposium on Transportation Systems, Chania, Greece, 1997]. Random utility has been the standard theoretical framework for explicit models of route choice C.F. Daganzo, Y. Sheffi [Transp. Sci. 11 (1982) 253-274], M. Ben-Akiva, M.J. Bergman, A.J. Daly, R. Ramaswamy [Proceedings of the Ninth International Symposium on Transportation and Traffic Theory, VNU Science Press, 1984], E. Cascetta, A. Nuzzolo, F. Russo, A. Vitetta [Proceedings of the ISTTT Conference, Lyon, France, 1996]. Random utility models are based on two conceptual steps: identification of available alternatives (choice set) and choice from a given choice set (specification of systematic utility and functional form). The first step is particularly relevant in route choice where several paths are, in principle, available in the network, and many empirical studies M. Ben-Akiva, M.J. Bergman, A.J. Daly, R. Ramaswamy [loc. cit.], E. Cascetta, A. Nuzzolo, F. Russo, A. Vitetta [loc. cit.], F. Russo, A. Vitetta [Proceedings of the Seventh WCTR, Sydney, Australia, 1996], R.G. Golledge [Resource Paper, Preprint 8 IATBR, Austin, Texas, 1997] seem to suggest that only a subset of these are actually perceived by trip makers, i.e., belong to their choice set. While in the literature there are papers dealing with the analysis of route perception in networks from the cognitive point of view R.G. Golledge [Resource Paper, Preprint 8 IATBR, Austin, Texas, 1997], most operational models of path availability/perception in connection with network assignment are implicit and/or indirect. In other words, models of route perception (enumeration) are seldom explicitly specified and, explicit or implicit, are calibrated on indirect information, which is both disaggregated (routes chosen by a sample of drivers) and aggregated (measured flows). This study proposes an operational model explicitly simulating route perception by drivers in an urban network and presents some calibration results based on a sample of routes stated as available/perceived by students and university workers in the city of Reggio Calabria. The results seem to confirm that few routes are actually perceived as feasible alternatives and that topological, level of service and socio-economic attributes influence users' perception. The model could be integrated within a route choice simulation procedure in network assignment models.
If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.
Volume (Year): 36 (2002)
Issue (Month): 7 (August)
|Contact details of provider:|| Web page: http://www.elsevier.com/wps/find/journaldescription.cws_home/548/description#description|
|Order Information:|| Postal: http://www.elsevier.com/wps/find/supportfaq.cws_home/regional|
References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Williams, H. C. W. L. & Ortuzar, J. D., 1982. "Behavioural theories of dispersion and the mis-specification of travel demand models," Transportation Research Part B: Methodological, Elsevier, vol. 16(3), pages 167-219, June.
When requesting a correction, please mention this item's handle: RePEc:eee:transb:v:36:y:2002:i:7:p:577-592. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Shamier, Wendy)
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
If references are entirely missing, you can add them using this form.
If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.
Please note that corrections may take a couple of weeks to filter through the various RePEc services.