Absent a federal standard, states that allow autonomous vehicles, or AVs, to circulate have had to make up their own rules.

CONCORD — Every time a bell rings in the holiday movie, “It’s a Wonderful Life,” an angel gets its wings. In a similarly heartwarming gesture, every time teacher Christine Paynton rings a bell in her ...

Passing a driving test on the first time of trying is seen by many as a badge of honour. And while others will admit to having to retake the practical two or three times, new data has a revealed a ...