EXPLORATORY LONGITUDINAL ANALYSIS OF SOLO AND JOINT TRIP MAKING USING THE PUGET SOUND TRANSPORTATION PANEL

Document Type

Journal Article

Publication Date

1999

Subject Area

infrastructure - vehicle, ridership - commuting, mode - subway/metro

Keywords

Workplaces, Vehicle occupancy, Travel patterns, Seattle-Tacoma Metropolitan Area (Washington), Residential buildings, Puget Sound Transportation Panel, Puget Sound Region, Level of service, Land use, Houses, Households, Dwellings, Demographics, Automobile ownership, Age, Activity choices, Accessibility

Abstract

The Puget Sound Transportation Panel is used to study the propensity of people to make solo and joint trips. The analysis consists of trip-based models in which solo versus joint trip making is explained in terms of person and household sociodemographics, daily activity and travel patterns, dwelling unit and workplace level of service and land use characteristics, and trip attributes. The analysis is repeated for all the days and all the waves (years) of the panel at hand. The analysis reveals that the major factor that determines joint trip making is the life-cycle stage of the household. It is also observed consistently across all the waves that, as the age of the person increases, the number of joint trips he or she makes also increases. Other factors that consistently affect joint trip making are household size, age of the household members, number of vehicles in the household, daily activity and travel patterns, and certain accessibility measures such as the access from transit to auto.

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