> Traffic lights will send out the same messages they send to humans by red/green lights to the cars using radio. Most of the traffic lights in Las Vegas alrea

> Traffic lights will send out the same messages they send to humans by red/green lights to the cars using radio. Most of the traffic lights in Las Vegas already support vehicle-to-infrastructure (V2I) communication, although you need an Audi A4, Q7 or Allroad manufactured after 1st June 2016 and an Audi Connect Prime subscription ($33.33/month) to make use of it [1]. [1] http://www.theverge.com/2016/12/12/13923254/audi-v2i-las-vegas-test-drive-traffic-signals http://www.theverge.com/2016/12/12/13923254/audi-v2i-las-veg...