A survey of large metropolitan planning organizations was conducted to ascertain past, current, and future data collection plans with respect to household travel surveys and related, auxiliary surveys. Thirty-eight metropolitan areas responded to this survey of travelsurveys, including the largest 20 metropolitan areas in the united states. Responses to the survey can be grouped into five general patterns: (a) regions conducting household surveys on a 10-year census cycle; (b) regions conducting household surveys on a 10-year off-census cycle; (c) regions on a 15-plus-year cycle; (d) regions conducting surveys on a tracking and continual cycle; and (e) regions not conducting household travel surveys. The survey provides a springboardto establish a network of metropolitan transportation planners involved in household travel survey analysis. Cooperation between regional agencies will foster greater awareness of the necessary tools andprocedures to weight and expand survey results, develop and apply trip-linking procedures, and integrate survey results into updated, reestimated travel demand models. This paper appears in transportation research record no. 1271, Transportation data and information systems: current applications and needs 1990.
Samenvatting