Survey on Travel Behavior Will Be Used to Improve Regional Travel

NEWS // January 25, 2017

Survey on Travel Behavior Will Be Used to Improve Regional Travel

In early January, the San Diego Association of Governments (SANDAG) launched its second phase of the San Diego Regional Transportation Study designed to collect detailed information about the travel activities and behaviors of local residents.  The goal of the study is to get a complete picture of transportation patterns across the region in order to better plan for the future and improve transportation in the San Diego region.

Approximately 200,000 households in San Diego County will be randomly selected to participate in a survey of their travel behavior through postcard invitations. The random selection process will ensure a representative sample of residents with varied demographics and travel behaviors from around the region. Residents will be invited to participate on a rolling basis, through late February and all data is anticipated to be collected by the end of March 2017.

Most participants will be asked to use a smartphone application to answer questions about their daily travel choices, with some respondents completing the study online or by phone.  Participants will be prompted to answer questions about when and where they travel; whether they drive alone, carpool, vanpool, walk, bike, or use public transit; and how much their travel activity costs (e.g., parking and transit fares).

The information gathered for the study will help transportation planners better understand how, when and why residents travel in the region. The results will be used to help develop infrastructure projects and programs to better meet regional transportation needs.

The first phase of the study occurred in fall 2016, during which time about 45,000 households were invited to participate. Between both phases, one in five households in the region will be randomly selected to join the study.  A similar study for the San Diego region was completed in 2006 and SANDAG conducts a study of this magnitude every ten years.

For more information, visit


2016-2017 San Diego Regional Transportation Study Fact Sheet

2006 San Diego Regional Transportation Study Report