Driving school includes plenty of information that seems immediately useful, like who goes first at a four-way stop. But some of what's taught seems outdated, or perhaps even useless. Like hand ...

The law requires drivers to signal certain maneuvers before carrying them out and explains how they must do so to avoid risks ...

Turn signals are one of the earliest automotive safety features. In the early 1900s, some cars came with mechanical arm "trafficators" that would pop out of either side of the car to indicate a turn.