The Future Mobility Survey (FMS) is a smartphone-based prompted-recall travel survey that aims tosupport data collection initiatives for transport modeling purposes. This paper details the considerationsthat have gone into its development, including the smartphone apps for iPhone and Android platforms, theonline activity diary and user interface, and the background intelligence for processing collected data intoactivity locations and travel traces. We discuss the various trade-offs regarding user comprehension,resource use, and participant burden, including findings from usability tests and a pilot study. We find thatclose attention should be paid to the simplicity of the user interaction, determinations of activity locations(such as the false positive/false negative trade-off in their automatic classification), and the clarity ofinteractions in the activity diary. The FMS system design and implementation provides pragmatic, usefulinsights into the development of similar platforms and approaches for travel/activity surveys.
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