Comparing the Data Quality of Global Positioning System Devices and Mobile Phones for Assessing Relationships Between Place, Mobility, and Health: Field Study

Robert Goodspeed   ¹ , PhD ;   Xiang Yan   ¹ , MUP ;   Jean Hardy   ² , MSI ;   VG Vinod Vydiswaran   ^{2, 3} , PhD ;   Veronica J Berrocal   ⁴ , PhD ;   Philippa Clarke   ^{5, 6} , PhD ;   Daniel M Romero   ² , PhD ;   Iris N Gomez-Lopez   ⁶ , PhD ;   Tiffany Veinot   ^{2, 7} , PhD

¹ Urban and Regional Planning Program, Taubman College of Architecture and Urban Planning, University of Michigan, Ann Arbor, MI, United States

² School of Information, University of Michigan, Ann Arbor, MI, United States

³ Department of Learning Health Sciences, Medical School, University of Michigan, Ann Arbor, MI, United States

⁴ Department of Biostatistics, School of Public Health, University of Michigan, Ann Arbor, MI, United States

⁵ Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI, United States

⁶ Institute for Social Research, University of Michigan, Ann Arbor, MI, United States

⁷ Department of Health Behavior and Health Education, School of Public Health, University of Michigan, Ann Arbor, MI, United States