My research focuses on active transport and multimodal aspects of emerging transportation technologies through their impacts on health and safety.
Emerging Transportation Technologies
I will be embarking on some new research examining the relationship between autonomous and connected vehicles and more traditional road users. Specific topics of inquiry include communication between autonomous vehicles and other road users, new prioritization strategies, and built environment impacts. Focus will be given to the health and safety consequences of emerging transportation technologies.
Bike-Friendly Cities and Safety for All Road Users
I investigated the relationship between cycling levels and overall safety within cities' transportation systems. The paper was recently published in Journal of Transport & Health. We are currently working on an analysis of medium-sized cities.
Proactive Traffic Safety on the Trip to School
In order to develop a proactive traffic safety methodology, I am investigating walking and bicycling trips to school in Denver. By understanding which built environment factors impact parental perceptions, I am able to measure trips that are suppressed due to safety concerns and thereby proactively identify traffic safety issues. The work is published in Transportation Research Part A and Transportation Research Record and has been presented at Congress for the New Urbanism, the National Walking Summit, an ITE Webinar, and other conferences.
Safety of Bicycle Shared Lane Markings
I investigated the effectiveness of shared lane markings ("sharrows") in terms of safety outcomes. While the initial results received some attention (Streetsblog, Public Radio, and CityLab) after TRB in 2016, the research has been reformulated to include dooring crashes. The paper has been published in the International Journal of Transportation Science and Technology.
National Adult/Child Bicycling Fatality Trends
I examined national trends in bicycling safety in relation to age and gender of bicyclists from 1985-2015. Findings show important differences across age groups. The work is still under peer-review.
Bicycle Safety Performance Functions
Along with a team from Portland State University and the University of North Carolina, I helped to derive safety performance functions (SPFs) for bicyclists. These were the first bicycle SPFs for roadway segments in a U.S. city.
Urban/Rural Road Safety
Investigated disparities in road safety outcomes between urban rural settings and different socio-economic groups. The paper was recently published in Journal of Urbanism.
Child Pedestrian Traffic Safety and Parks
Pedestrian Safety in India
As a result of my time with the World Resources Institute in Bangalore, I became interested in examining pedestrian behavior in relation to safety in urban areas of India. This has resulted in three papers published in Transportation Research Part F, Journal of Traffic and Transportation Engineering, and Journal of Global Epidemiology and Environmental Health.
Motorized Two-Wheelers in India
Commute Mode and Mental Health
I examined the relationship between mental health and commute mode in major metropolitan areas of the United States. The findings were published in 2014.