Street lighting is an important thing to be implemented with utmost care and vision since this affects both motorists and pedestrians. The main reason for accident during night is poor street lighting. The major varieties of street lamps used are tungsten filament lamps, tubular fluorescent lamps, sodium vapour discharge lamps and mercury high pressure discharge lamps. Tungsten filament lamps are suitable for minor residential streets and pedestrian walk-ways. Tubular fluorescent lamps are best for shopping streets. Sodium vapour discharge lamps and mercury vapour discharge lamps are widely used nowadays in the streets of India. These lamps are highly efficient and have longer life span. Different treatments and skilled method has to be employed while designing lighting at bends or curves, bridges and tunnels.
