Onboard Transit Passenger Surveys
In 2009, Action Research worked with the San Diego Association of Governments (SANDAG) to conduct an onboard survey of passengers to collect origin, boarding, alighting, destination, as well as household and individual-level demographic information to meet the transit planning and modeling needs for the San Diego region. We designed a stratified random probability sample of passenger trips on the bus and rail routes in San Diego County. Our sampling plan resulted in a sample size of approximately 43,000 passenger trips sampled from the 151 routes in the San Diego region with a final response rate of 65%.