A travel survey (or travel diary or travel behavior inventory) is a survey of individual travel behavior. Most surveys collect information about an individual (socio-economic, demographic, etc.), their household (size, structure, relationships), and a diary of their journeys on a given day (their start and end location, start and end time, mode of travel, accompanyment and purpose of travel).
Major travel surveys are conducted in metropolitan areas typically once a decade. Some regions, notably metropolitan Seattle, Washington conduct a panel survey, which interviews the same people year after year, to see how their particular behavior evolves over time.
Recent or continuous city-wide travel surveys
Brisbane, Australia - The South East Queensland Travel Survey collects travel data in the Greater Brisbane region and the neighbouring areas of Gold Coast and Sunshine Coast. The continuous survey commenced in 2003 and surveys around 6,000 households every two years.
Recent or continuous province/state-wide travel surveys
Southern Ontario, the Transportation Tomorrow Survey was conducted in 2005-6 (two phases: September 2005 -> January 2006 and September 2006 -> February 2007). This is a repeat survey using essentially the same instrument as conducted in 1986, 1991, 1996, 2001 and most recently 2006 where 149,631 households comprise the final database. The survey was conducted using telephone interviews with an advance letter sent to households to solicit their participation.
Recent or continuous country-wide travel surveys
Germany is conducting its National Travel Survey since 1994 on a yearly basis. Each household member fills in a travel diary in which he records each trip made during the course of one week. Despite this yearly survey there is another non regular scheduled survey which is conducted again in 2008. 25,000 households are expected to participate.
The Netherlands National Travel Survey surveyed around 34,500 households in 2003. The survey has been conducted yearly since 1985, but with some changes in methodology. Survey forms are mailed out, with follow-up motivational phone calls.
Notes and references
- Auckland Travel Survey
- Queensland Transport
- Tasmanian Dept of Transport
- Transport for London
- NSW Ministry of Transport
- Data Management Group - University of Toronto
- Danish Transport Research Institute
- The German Mobility Panel
- Institute for Road Safety Research
- NZ Ministry of Transport
- UK Department for Transport
- National Household Travel Survey
- Dept of Transport, South Africa
- Sika Institute