CNN The Lead With Jake Tapper October 20, 2015 20:58:00
Anything, from another car suddenly stopping, it a construction worker in the road. all to help design the safest vehicle possible. >> the vehicle's controlling our speed and our lane position and monitoring the environment ahead. >> reporter: the test car receives wireless signals from other vehicles in the test. when the motorcycle brakes -- your foot is not on the pedal. >> not on the pedal. he has a braking event. a construction worker hidden behind the truck but he's wearing a vest that has the same technology and he's communicating his position to us as well. so when the vehicle detected...