This research roundup looks at automated vehicles, including findings on potential benefits, safety concerns, public opinion and policy implications.

Critics of fuel-efficiency standards have long argued that, by making cars lighter, they make cars more dangerous. A new paper challenges this theory, arguing that they may be saving lives.

2015 selection of research that helps define, understand and analyze the sharing economy, those who participate in it and its economic impact.

2015 review of scholarship on impact of air pollution in the United States, including health effects, economic costs and automotive and transportation causes.

2015 study published in Police Quarterly that uses red light camera observations to measure racial disparities in traffic violations in an attempt to clarify conflicting evidence related to racial profiling.

2015 assessment of the state of research on bikeshare programs, with insight into user demographics, system growth, mode shift, and health and safety.

2015 roundup of research on recent technological advances that could enable wider adoption of electrical vehicles powered by sustainable energy sources.

2015 roundup of research on the global decline in gas and oil prices, and the potential effects on public health, transportation and driving, business economics and public policy decisions.

2014 study in the Journal of Policy Analysis and Management demonstrating how police ticketing campaigns can reduce traffic crashes and fatality rates.

2011 study from the University of Toronto and London School of Economics on the relationship between infrastructure and automotive traffic levels.