DAYTONA BEACH, Fla. -- The only hand signals usually seen at stock car races have been gestures made by drivers angry with a competitor. But that is changing now. NASCAR officials were to begin using ...

As electric cars become more common, vulnerable road users are encountering more and more warning signals from them. Now, new research from Chalmers University of Technology in Sweden, shows that one ...

For years, Google's Waymo driverless taxis have been wreaking havoc on San Francisco streets — and an increasing number of other cities as the service expands — triggering traffic jams, getting stuck ...