Hangover impairment translates to slowed reaction times, poor concentration and more driving errors, which increases the risk for crashes the morning after drinking.

A federal law requires new cars to include technology that detects drunk or impaired driving, but regulators still have not cleared it. Last month, the U.S.

The DUI prevention mandate survives politically, but engineers still face major reliability questions ...

New driver monitoring systems are stepping up with cameras and sensors that watch for things like drowsiness or distraction.

At this point, driver detection is nearly inevitable in modern vehicles, particularly as advanced driver-assistance systems (ADAS) such as Ford’s BlueCruise rely on it to ensure drivers remain ...