COMPETING-RISKS-DURATION MODEL OF HOUSEHOLD VEHICLE TRANSACTIONS WITH INDICATORS OF CHANGES IN EXPLANATORY VARIABLES

A household-vehicle-transactions model that was developed as a competing-risks-duration model is presented. The model was developed assuming the following three types of competing risks: (a) replacing one of the vehicles in the household fleet, (b) disposing of one vehicle in the fleet, and (c) acquiring one vehicle to add to the fleet. In addition to the attributes of the household, changes in these attributes are expected to have strong effects on vehicle transaction behavior. To account for their effects, dummy variables indicating the occurrence of a change in selected household attributes were defined as time-varying covariates and introduced into the model. In addition, vehicle transactions themselves change the needs and motivations for vehicle holding, thus affecting the timing and type of the transaction that immediately follows. Dummy variables indicating the type of the preceding transaction also were introduced as time-varying covariates into the model. The results of the empirical analysis using a data set collected in a panel survey empirically support the theoretical considerations underlying the model development and indicate that the effects of changes in household attributes and that of a preceding transaction are well represented in the model.

• Record URL:
  • https://doi.org/10.3141/1676-15
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=COMPETING-RISKS-DURATION+MODEL+OF+HOUSEHOLD+VEHICLE+TRANSACTIONS+WITH+INDICATORS+OF+CHANGES+IN+EXPLANATORY+VARIABLES&author=T.+Yamamoto&author=R.+Kitamura&author=S.+KIMURA&publication_year=1999
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309071011
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1676, Travel Behavior and Passenger Travel Demand Forecasting.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Yamamoto, T
  • Kitamura, R
  • Kimura, S
• Publication Date: 1999

Language

• English

Media Info

• Features: References; Tables;
• Pagination: p. 116-123
• Serial:
  • Transportation Research Record
  • Issue Number: 1676
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Automobile ownership; Covariance; Empirical methods; Households; Mathematical models; Purchasing; Travel behavior
• Uncontrolled Terms: Replacing; Vehicle disposal
• Subject Areas: Freight Transportation; Highways; Planning and Forecasting; Society; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00778894
• Record Type: Publication
• ISBN: 0309071011
• Files: TRIS, TRB, ATRI
• Created Date: Nov 18 1999 12:00AM