SHOPPING TRIP CHAINS: CURRENT PATTERNS AND CHANGES SINCE 1970

National demographic patterns are changing. In absolute terms household and automobile growth exceeds population growth, resulting in an increase in the number of trips and traffic congestion. The evidence from the Chicago region, however, suggests that the number of trips per capita has not changed in 20 years, trip chains per capita are declining, travel per households has declined, and perhaps most surprisingly shopping trips per capita have declined noticeably. However, through increasing trip-chain complexity, more out-of-home destinations are reached with a constant number of trips, indicating a higher degree of trip mobility. Trip making is becoming more efficient, and the time spent shopping is not increasing even with fewer per capita shopping trips. Although many of these trips are conducted during the peak and add to congestion, since they are chained with the work trip, moving these trips to the off peak may increase vehicle miles of travel (VMT). Moreover, relatively few trip chains follow the minimum path, thereby adding to VMT. These conclusions are drawn from 1970 and 1990 household travel data collected by the Chicago Area Transportation Study for DuPage County, a fast-growing area west of Chicago. The authors encourage others to examine the temporal changes in travel behavior in their locales.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1994/1443/1443-005.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=SHOPPING+TRIP+CHAINS%3A+CURRENT+PATTERNS+AND+CHANGES+SINCE+1970&author=H.+Kim&author=A.+Sen&author=S.+Soot&author=E.+Christopher&publication_year=1994
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309055245
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1443, Travel Demand Modeling and Network Assignment Models. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Kim, Hyungjin
  • Sen, Ashish
  • Soot, Siim
  • Christopher, Ed
• Publication Date: 1994

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 38-44
• Monograph Title: Travel demand modeling and network assignment models
• Serial:
  • Transportation Research Record
  • Issue Number: 1443
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Economic efficiency; Shopping trips; Travel behavior; Trip chaining
• Identifier Terms: Chicago Area Transportation Study
• Uncontrolled Terms: Efficiency
• Geographic Terms: Chicago (Illinois)
• Old TRIS Terms: Trip making
• Subject Areas: Economics; Highways; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00670482
• Record Type: Publication
• ISBN: 0309055245
• Files: TRIS, TRB
• Created Date: Dec 23 1994 12:00AM