IES DG-4-03

The primary purpose of roadway lighting is to providea safe nighttime environment for vehicular and pedestriantraffic. For a lighting system to operate at maximumeffectiveness, the lighting systems maintenancemust be considered and included during the systemdesign process. Once a system has been designedand installed, proper maintenance then becomesessential to the reliability and continued high performanceof the roadway lighting system.

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