Street lighting is again from a complementary road that can be placed on the left / right of the road and / or in the middle (in the median part of the road) that is used to pass the road and the surrounding roads that are needed including intersection, road laying (overpass interchange, fly oer), bridges and underground roads (underpasses, tunnels).
Function of Lighting Lights
1. To improve the safety and comfort of drivers, especially to anticipate travel situations at night
2. Give the best possible information to resemble conditions during the day
3. For environmental security or preventing crime
4. To provide comfort and beauty of the road environment.