Amid species loss, the ‘oh my’ mammals that are doing better

Carmel, Indiana, has created safer, more environmentally friendly road travel by embracing roundabouts. Starting in the late 1990s, Carmel has installed 140 roundabouts and counting – more than any American city. Not only have the roundabouts become a local tourist attraction, but their success has also helped push other municipalities to make the switch.
The primary benefit is safety. More than 50% of serious car crashes occur at intersections, but modern roundabouts make all crashes, injuries, and deaths less likely. A recent study by the Insurance Institute of Highway Safety found injury crashes dropped by nearly 50% at 64 roundabouts in Carmel. There’s also a climate benefit to roundabouts; since drivers don’t have to stop and idle at traffic lights, vehicles burn significantly less fuel, according to the Federal Highway Administration. Studies estimate as much as a 59% decrease in vehicle emissions compared with signaled intersections. Officials also point out that roundabouts are resilient against power outages, since they don’t need electricity to operate.The New York Times
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