Yep. It would be great to get urban street speed limits lowered to max out at 25–30 mph everywhere, with strict enforcement against driving above 35–40mph. In collisions between cars and pedestrians or cyclists, everyone mostly walks away alive at 25 mph, whereas at 45+ mph the pedestrian or cyclist dies almost every time.<p>With smarter road design organized to minimize waits at traffic signals, it wouldn’t even necessarily result in slower trips or less road capacity overall.