Current autonomous vehicle navigation is entirely dependent on visual recognition of traffic signal state — an approach that is nowhere near 100% accurate. Urban intersections are replete with flashing lights from many sources, traffic signals may be hidden from view behind trees or other vehicles, and signal bulbs can be burned out or obscured by snow.
One mistake at a busy intersection can be catastrophic.
Integrating Connected Signals’ real-time traffic light status and predictions into the navigation and powertrain systems of autonomous vehicles lets OEMs:
Add another layer of information to autonomous vehicles’ navigation systems to help improve accuracy
Know the state of obstructed lights when approaching them
Improve speed, routing and driving efficiency