Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
Types of Global Positioning System Surveys
Selected Data About Geographic Locations
Field Application of Global Positioning System
Errors in Global Positioning System
Introduction to Global Positioning System
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Trajectory Data Analyses for Pedestrian Space-time Activity Study
Published on: February 25, 2013
Susan Athey1,2, Billy Ferguson3, Matthew Gentzkow4,2
1Department of Economics, Stanford University, Stanford, CA 94305; athey@stanford.edu.
Experienced isolation, measured by smartphone GPS data, reveals lower racial segregation in daily activities than residential data suggests. This experienced isolation is linked to urban density and income mobility.
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