2025-07-21 00:00:00 Daynamica™ is an innovative, research-grade smartphone application that collects and processes highly detailed human activity and travel behavior data with minimal user burden, and allows users to view and annotate that data at their convenience. It delivers richer, more accurate data than existing solutions more efficiently, and at lower cost. - Comprehensive data. Daynamica captures many more dimensions of travel behavior data than either travel surveys or GPS sensing alone. - Lower respondent burden. Because it automatically collects data on several trip attributes, Daynamica puts a much lower time burden on respondents compared to traditional travel survey methods. In addition, respondents do not need to carry or use any additional devices if they already own a smartphone. - More accurate data. Because users are able to see trip information derived from the sensor data before entering additional trip information, Daynamica minimizes user recall bias or reporting errors. - Richer data. Lower user burden could allow agencies/researchers to lengthen the time studied from a typical day to a week or more, thus allowing analysis of the differences between weekdays and weekends or other variations.