Cadillac’s vehicle-to-infrastructure system can talk to traffic lights

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Cadillac tested out the V2I system by rigging two traffic signals near the GM Warren Technical Center campus to send data to its demo CTS vehicles. The automaker said the stop lights were able to use Dedicated Short-Range Communications (DSRC) protocol — which is the same system used for inter-car V2V communication — to send data to the cars about when the light would turn red. The car was then able to alert its driver if their current speed might create an issue at the intersection.

Source: Cadillac’s vehicle-to-infrastructure system can talk to traffic lights

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