Data on people’s travel behaviour is typically collected using travel questionnaires, travel diaries or Computer Assisted Telephone Interviewing (CATI). These methods are time consuming for the participant and involve the participant recalling their travel information. This creates problems because human recall is often less than perfect. If the data recall element of a survey could be eliminated it could reduce human error and the burden placed on the participant to remember what they did. Global Positioning System (GPS) technology offers a possible solution as the participants’ movements are automatically recorded. This paper aims to explore the burden experienced by participants of a GPS-survey, of 8 weeks duration and to examine the compliance rates of those participants over the duration of the survey time. A better understanding of burden and compliance is important for survey design. These will affect our recruitment strategies, choice of sample size and sampling strategy and survey protocols
