Center for Injury Research and Prevention

Pedestrian and Pedalcyclist Safety

The Center for Injury Research and Prevention is partnering with researchers from Penn Mobility21 and other research institutions to study pedestrian safety and pedalcyclist safety. From bike lanes to pedestrian plazas, the urban transportation systems of American cities – and Philadelphia specifically – are becoming more multimodal. Yet the increasing number of pedestrians and pedalcyclists, coupled with an increase in distracted driving, has led to a rise in conflicts, near crashes and crashes. In 2018 alone, distracted driving claimed 2,841 lives: 1,730 drivers, 605 passengers, 400 pedestrians and 77 bicyclists.This is a public health epidemic requiring transportation planning science. 

pedestrian and pedalcyclist safety

Trends in School-Age Pedestrian and Pedacyclist Crashes in the USA: 26 states, 2000-2014

Despite substantial progress, car crashes still remain a leading killer of children in the United States. By studying police-reported crash data from 26 states and calculating population rates of pedestrian and pedalcyclist crashes, crash fatality rates, and pedestrian commuter-adjusted crash rates for school-age children as compared with other groups, this study expands our analysis of US trends in crashes involving school-age pedestrians and pedalcyclists.

Read the study abstract

Principal Investigator: Allison E. Curry, PhD, MPH, CIRP senior scientist and director of epidemiology and biostatistics; Funding: National Institutes of Health

Safe Urban Mobility: A User-Based Safety Analysis of the Chestnut Street Bike Lane


A protected bike lane on Chestnut Street in University City, Philadelphia

This transportation planning research project collects the missing user-based information on vulnerable road users (pedestrians and cyclists) using eye tracking glasses to: 1) enable the study of the new protected bike lane on Chestnut Street in West Philadelphia/University City and 2) assist the city of Philadelphia in deploying safe urban infrastructure.

Initial results indicate the most “high-stress” portions of the bike lane, develop metrics to compare stress and safety between protected and unprotected bike lanes, and how signage can be improved to maximize safety information to cyclists.  

Chestnut Street Bike Lane Evaluation Report, 2017

Read more in this Philadelphia Inquirer article. 

Principal InvestigatorMegan S. Ryerson, PhD, CIRP Senior Fellow; Funding: University of Pennsylvania Perelman School of Medicine

Read about pedestrian safety in our Research In Action blog.