How the sensors in your car could alert other drivers to road hazards

HERE Technologies is using car sensor data, in this case from Munich, Germany, to generate a map of real-time road conditions. Photo: HERE Technologies

Nokia's former map unit, now owned by a consortium of European automakers, is launching a new effort to aggregate sensor data from millions of cars to help create a real-time map of road conditions.

Why it matters: Understanding not just the map of the road, but what is happening on those roads, is key for autonomous vehicles. It also could help HERE stand out from Google and others in the mapping space.