The rule of thumb for almost completely eliminating pedestrian fatalities is com...

		bryanlarsen 4 months ago \| parent \| context \| favorite \| on: Waymo granted permit to begin testing in New York ... The rule of thumb for almost completely eliminating pedestrian fatalities is complete separation or a 20mph speed limit. A 20mph speed limit is far more feasible for the 5 boroughs than most other American cities.