Hence the key factors to be considered for road lighting design are:
The most prevalent standard for Road Lighting in Europe and middle east is CIE 115 and CIE140. The American standard for roadway lighting is ANSI-IESNA RP-8-00. These are the most prevalent standards for roadway lighting all over the world.
Road Lighting is significant in visually complex area where there are various types of road users like motorists, cyclists, pedestrians etc.
Road lighting should be providing safety, security, improve energy efficiency, and protect consumers, workers and the environment. Road lighting standards are developed to take at most care of all the above.
According to CIE115 and CIE140 the road lighting classes are divided based on the following:
- M classes – For motorized traffic on roads with medium to high driving speed.
- C classes – For motorized traffic, but applicable on conflict areas
- P classes – are intended for pedestrians and cyclists