Climate change costing billions in extra road repairs
American road engineers are using temperature models that do not consider the warming climate, costing the country billions in early repairs, a new study finds.
transportation
Expert Commentary
Body camera footage suggests police treat black drivers with less respect
Police officers speak less respectfully to black drivers than white drivers during routine traffic stops, according to a new study from Stanford University researchers.
Expert Commentary
Fuel-efficient cars may actually be safer than gas guzzlers
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.
Expert Commentary
Some seat belt laws may be less effective at reducing traffic deaths
A new study suggests that laws allowing police to directly cite motorists for not wearing seat belts may be less effective than they once were at reducing accident deaths.
Expert Commentary
Lead emissions from planes may be costing billions in lost earnings
Airplanes are now the largest source of lead pollution in the United States. Americans hurt by lead exposure may be losing billions in lost wages.
Expert Commentary
Drowsy driving and car crashes: How night-shift work contributes to traffic dangers
2016 study published in PNAS that looks at the impact of night-shift work on measures of drowsiness, driving performance and risk for motor vehicle crashes.
Expert Commentary
Uber, Airbnb and consequences of the sharing economy: Research roundup
2015 selection of research that helps define, understand and analyze the sharing economy, those who participate in it and its economic impact.
Expert Commentary
The health effects and costs of air pollution: Research roundup
2015 review of scholarship on impact of air pollution in the United States, including health effects, economic costs and automotive and transportation causes.
Expert Commentary
Red-light cameras: What insights can they offer about racial profiling?
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.
Expert Commentary
Bikeshare systems: Recent research on their growth, users’ demographics and their health and societal impacts
2015 assessment of the state of research on bikeshare programs, with insight into user demographics, system growth, mode shift, and health and safety.
Expert Commentary