Throughout my daily commute I see many people making U-turns, some with ease, but the majority seems to encounter difficulty. The process itself isn't difficult, but dealing with your fellow commuters while performing the move can be. I feel that if vehicles were equipped with a U-turn signal drivers would be less likely to rear-end you and perpendicular drivers less likely to turn in front of you. The signal would apprise other commuters of your intention to make the sometimes dreadful...