Before the blinkers we know today, drivers needed to use hand signals to show which way they were turning. This was the case across countries around the world.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Turn signals are one of the earliest automotive safety features. In the early 1900s, some cars came with mechanical arm ...