Today's solutions to safer streets

It's great that self-driving cars will eventually reduce fatalities, but even today there are things that cities can do to make streets safer.

Research has demonstrated that making a street feel more dangerous causes drivers to increase their awareness which leads to fewer accidents. This is really interesting, and counterintuitive.

Cities can also make pedestrians and bikers more visible, for example with curb extensions (a.k.a. bulb-outs), trees, and parking protected bike lanes.

Personally, I'd be down with wider sidewalks and narrow streets across the board, but that might have to wait until parking is less needed.