Open-source maps should help driverless cars navigate our cities more safely

Our current street maps aren't much good for helping driverless cars get around. Although we've mapped most roads, they get updated only every couple of years. And these maps don't log any roadside infrastructure such as road signs, driveways, and lane markings. Without this extra layer of information, it will be much harder to get autonomous cars to navigate our cities safely. Robotic deliveries, too, will eventually require precise details of road surfaces, sidewalks, and obstacles.