Bosch Plans to Use Radar Sensors in Millions of Cars to Make Better Maps

The maps should ideally be accurate down to less than an inch, says Christoph Mertz, a scientist at the Robotics Institute of Carnegie Mellon University and cofounder of a road monitoring company called Roadbotics. “You want the systems to be redundant,” Mertz says, so that the map, GPS, and onboard sensors can help the car figure out where it is.