Each year, about 27 million tires end up in landfills, dumps and stockpiles, where they pose health and environmental hazards. These tires could get a second life as components of the roads they once traveled, but blends of ground tires and asphalt can be unstable. Now, researchers have identified polymer additives that increase the storage stability of asphalt rubber. They report their results in the ACS journal Energy & Fuels.
UCLA researchers have found that people involved in electric scooter accidents are sometimes injured badly enough -- from fractures, dislocated joints and head injuries -- to require treatment in an emergency department.
Development outcomes along streetcar corridors can't be entirely attributed to the presence of the streetcar, researchers found. Streetcar investment is commonly accompanied with a healthy incentive package, for example.
A new virtual tool could help planners choose the best places to install bikes lanes in cities. The data-based tool builds on previous research at the University of Waterloo that validated the safety benefits of bike lanes for cyclists and motorists.
New research suggests that drivers who use hands-free electronic devices, as opposed to handheld ones, are less likely to get into a crash.
If you think traffic in city centers is bad now, just wait until self-driving cars emerge on the scene, cruising around to avoid paying hefty downtown parking fees.
Public transportation systems provide numerous economic benefits for a community. An added public health bonus provided by such systems may be lower obesity rates. A new study by researchers from the University of Illinois at Urbana-Champaign and Georgia Tech compared and analyzed county data from 2001 and 2009. They found that a single percentage-point increase in mass transit ridership is associated with a 0.473 percentage-point lower obesity rate in counties across the United States.
People riding free-floating bike share rentals in Seattle are wearing helmets infrequently, according to a new analysis conducted by University of Washington researchers. Only 20 percent of bike share riders wore helmets in the study, while more than 90 percent of cyclists wore helmets while riding their own bikes. Different research on the free-floating bike share systems showed that bikes were usually available in all Seattle neighborhoods across economic, racial and ethnic lines. However, more bikes were located in more-advantaged neighborhoods.
More than half of people who take medical cannabis for chronic pain say they've driven under the influence of cannabis within two hours of using it, at least once in the last six months, according to a new survey. One in five of them said they'd driven while 'very high' in the past six months.
Of the known alien (non-native) species found in Antarctica, a non-biting species of midge currently presents one of the highest risks to terrestrial ecosystems, researchers have found.