An increasing proportion of the growth in car ownership is made up of second cars, i.e. The addition of an extra car to a household that already has one. If the distance travelled by these cars is consistently different from the more common single car in a household, then future traffic levels cannot be assumed proportional to car ownership. However, the evidence on this shows substantial conflicts. Some data sources show that cars in two-car households are used substantially less than cars in one-car households. Other sources show exactly the opposite. The conflicting evidence is discussed, and some new figures given, leading to a reconciliation of the conflicts and some recommendations for research and application in traffic forecasting. (Author/TRRL)

  • Availability:
  • Supplemental Notes:
    • This paper was presented during the proceedings of Seminar Q held at PTRC's 10th Annual Summer Meeting, Transportation Analysis and Models, Warwick University, England.
  • Corporate Authors:

    PTRC Education and Research Services Limited

    110 Strand
    London WC2,   England 
  • Authors:
    • Goodwin, P B
    • Mogridge, MJH
  • Conference:
  • Publication Date: 1982

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 95-107

Subject/Index Terms

Filing Info

  • Accession Number: 00381625
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-86050-113-2
  • Report/Paper Numbers: REPORT
  • Files: ITRD, TRIS
  • Created Date: Apr 30 1984 12:00AM