Travel Behavior Inventory (TBI) 2018-2019 Household Interview Survey

The Travel Behavior Inventory (TBI) Household Survey is a travel survey of households in the greater Twin Cities region that has been conducted every 10 years since 1949. This survey supports transportation planning and forecast model development. <br/><br/>In 2018, two significant changes occurred to the TBI household survey program: (1) the survey moved from a decennial survey to recur every other year and (2) the survey began using spartphone GPS applications as the primary means of data collection. <br/><br/>The 2018-2019 TBI Household Survey was fielded from October 1, 2018 through September 30, 2019. Smartphone participants completed a 7-day travel diary. Online and call center participants completed a 1-day travel diary. The same questionnaire was used for smartphone, online, and call center participants. The survey was available in English, Spanish, Karen, Oromo, Somali, and Hmong. <br/><br/>Please refer to documentation for information about sample plan, survey instruments, field implementation, and data expansion. <br/><br/>See "associated data sets" for names of spatial datasets in Minnesota Geospatial Commons that can be joined to these tables (e.g., census boundaries).<br/><br/>Table of Data: Codebook, Day, Household, Person, Trip, Vehicle