Project: #29 The built environment and pedestrian safety in the Philadelphia region Progress Report - Reporting Period Ending: Dec. 31, 2016 Principal Investigator: Erick Guerra Status: Completed Start Date: Dec. 1, 2015 End Date: June 30, 2017 Research Type: Advanced Grant Type: Research Grant Program: MAP-21 TSET National (2013 - 2018) Grant Cycle: 2016 TSET UTC Progress Report (Last Updated: March 18, 2019, 10:57 a.m.) % Project Completed to Date: 50 % Grant Award Expended: 100 % Match Expended & Document: 75 USDOT Requirements Accomplishments Preliminary findings were used in the descriptive sections of a coauthored book with Robert Cervero (UC Berkeley) and Stefan Al (UPenn). Impacts Findings from this study will contribute to understanding of the relationship between population density and traffic collisions, and to policy discussions about the relative benefits of using local planning powers to allow or prevent marginal increases in development. The next phase of the analysis will help researchers and practitioners make better informed decisions about the correct unit of analysis and the best exposure controls when examining the relationship between the built environment and collisions across space. Other Outcomes New Partners Issues Nothing to report