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Originally Posted by RajaTaurus  I mean they switch off Headlights... Well the reason you gave for the practice sure makes sense, but it is a bit strange for me, as I haven't seen it abroad.. |
AFAIK, vehicles should switch on headlights only when they are moving. If they stop, like a bus at bus-stop or vehicles at traffic signals, they should switch off headlights & switch on the parking light.
Head lights: Vehicle is moving.
Parking lights: Vehicle is stationary.
This is a convention of traffic communication.
PS: When you want to give way to vehicle coming from opposite direction, switch off your headlights. This means the other vehicle can pass you. This is done mostly in single lane roads & at intersections.