This paper reports on the design, administrative aspects, and selected findings of the Southwestern Pennsylvania Regional Planning Commission's (SPRPC's) small-scale, ongoing home-interview survey implemented in the agency's six-county region surrounding Pittsburgh. As initially conceived, the survey was an ambitious effort with multiple objectives. The implemented survey was a modest effort with a single, surveillance-related objective: to measure key travel characteristics and to compare and isolate changes in the characteristics over time. Achievement of the objective would reestablish and serve to retain the credibility of SPRPC's transportation data base. As the objectives were revised over a two-year period, so, too, was the sample size. The final sample design, based on satisfying the surveillance objective still remaining within acceptable funding limits, involved a total of 1600 household interviews during 1978--with an additional 1600 scheduled for interviews during the 1979-1980 period. Guide-Post Research, Inc., a market research consultant employing experienced interviewers, performed the data collection. However, SPRPC maintained overall survey control-managing the effort from data collection through processing. The consultant achieved an interview completion rate of 91.1 percent for the first year of data collection. Selected data tabulations from the 1978 portion of the survey are also presented as an example of the information available and its accuracy. The tabulations indicated that no unusual travel activity occurred in the region during 1978. (Author)

Media Info

  • Media Type: Print
  • Features: References; Tables;
  • Pagination: pp 10-15
  • Monograph Title: Transportation information systems: applications and uses
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00334215
  • Record Type: Publication
  • ISBN: 0309031249
  • Files: TRIS, TRB
  • Created Date: Sep 16 1981 12:00AM