A MODIFIED LOGIT ROUTE CHOICE MODEL OVERCOMING PATH OVERLAPPING PROBLEMS. SPECIFICATION AND SOME CALIBRATION RESULTS FOR INTERURBAN NETWORKS

Random utility route choice models play a central role in stochastic assignment, to road networks. The usually adopted specifications for such models are Multinomial Logit (MNL) and Probit, both having pros and cons. In this paper a modified specification of the Logit model, named C-Logit, is proposed. The C-Logit overcomes the main shortcoming of MNL, ie unrealistic choice probabilities for paths sharing a number of links, while keeping a closed analytical structure allowing calibration on disaggregate data and efficient path flow computations when paths are explicitly enumerated. A behavioural interpretation of the C-Logit model is proposed by presenting it as a particular case of a wider class of implicit joint models of route perception-choice. In the second part of the paper a procedure for path enumeration is proposed, and MNL and C-Logit models are specified and calibrated from a sample of 1471 paths chosen by truck drivers on the Italian inter-city road network. The preliminary calibration results are promising and show significant improvements induced by both the commonality factor characterizing the C-Logit model and by label variables which can be seen as attributes explaining path perception. (A) For the covering abstract see IRRD 886400.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0080425860
• Corporate Authors:

  Elsevier

  The Boulevard, Langford Lane
  Kidlington, Oxford  United Kingdom  OX5 1GB
• Authors:
  • CASCETTA, E
  • Nuzzolo, A
  • Russo, F
  • Vitetta, A
• Conference:
  • TRANSPORTATION AND TRAFFIC THEORY. PROCEEDINGS OF THE 13TH INTERNATIONAL SYMPOSIUM ON TRANSPORTATION AND TRAFFIC THEORY, LYON, FRANCE, 24-26 JULY 1996
• Publication Date: 1996

Language

• English

Media Info

• Features: References;
• Pagination: p. 697-711

Subject/Index Terms

• TRT Terms: Conferences; Itinerary; Mathematical models; Networks; Roads; Traffic flow
• Uncontrolled Terms: Road networks; Selection
• ITRD Terms: 8525: Conference; 699: Itinerary; 6473: Mathematical model; 1053: Road network; 9072: Selection; 671: Traffic flow
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00732931
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-08-042586-0
• Files: ITRD
• Created Date: Mar 24 1997 12:00AM