Many models of travel demand, particularly models of mode choice, have assumed that the choice of mode is often highly constrained. In particular,many studies have noted that those people without access to a private carare the most predominant users of public transport, particularly in off-peak times. Other studies have also demonstrated the effects of access to cars on the total number of trips made, and concluded that lack of access to a private car is a prime determinant of "transport poverty." However, most of these studies have defined "access to cars" in a rather simplifiedmanner. Specifically, most studies have used "household car ownership" as the major measure of "access to cars". This paper takes the view that "access to a car" should mean "was a car available to a particular person at the time when that person wanted to make a trip?" The paper uses data to calculate true measures of "access to a car" by tracing the location of household cars during the day and matching this with the travel demands expressed by members of the household. The paper demonstrates that some commonly held beliefs about car availability and car ownership can be seriously questioned when viewed from the perspective of the actual "access to cars" for a particular trip. (a) This paper is not bound in the main volume. For the covering entry of this conference, see IRRD abstract no 861490.


  • English

Media Info

  • Features: References;
  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00674932
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Mar 28 1995 12:00AM