Workshop Synthesis: Smartphones in travel surveys

Workshop "Smartphones in travel surveys" sought to provide a research agenda for three research themes critical to the use of smartphones in travel surveys in the future: i) survey design, ii) practical and technical implementation and iii) information inference and techniques. Four concrete needs were identified to help ensure the most promising role for smartphone travel surveys in the future: reporting standards and guidelines for data collection; a checklist or manual to help surveyor conduct smartphone travel surveys; centralizing information on existing apps, information inference libraries and available training datasets; and finally, community development of open-source solutions and/or back-end transparency of proprietary data collection and analysis solutions.