How the Distance of Nighttime Motor Vehicle Lights Changes from Close to Far

The distance of nighttime motor vehicle lights changing from close to far depends on the situation.

When entering a bend from a straight road, the distance of the lights may become shorter.

Nighttime driving with lights on requires a certain technique to judge the road and terrain:

1. If you find that the distance of your car's lights is becoming shorter, the road condition ahead may be: entering a bend with mountains or barriers, reaching the low point of a slope, or approaching or entering a hill.

2. If you find that the distance of the lights is becoming longer, the road condition ahead may be: the bend becoming straight, entering a downhill, or a gentle slope becoming steep.

3. If you see the lights leaving the road, the road condition ahead may be: a sharp turn or a large bump on the road, or reaching the top of a hill.

4. When the lights move from the center of the road to the side, the road condition ahead may be: a normal bend or a series of bends. If it is a series of bends, the lights will move from one side to another.

In special cases, you should alternate between using far and near lights:

When encountering another vehicle with its lights on, and you cannot see the road or objects in front of your car, increasing the risk of accidents, you can switch between far and near lights quickly to remind the other driver. If the other vehicle also switches between far and near lights quickly, check if your lights are still in far mode.