Illumination Levels

Application Minimum maintained mean illuminance (lux) Illuminance uniformity (minimum/average)
Walkways exclusively for pedestrians 5 0.25
Traffic areas and roads for slow moving vehicles, max. 6 mph (e.g. bicycles, trucks and excavators) 10 0.40
Regular vehicular traffic (max. 25 mph) 20 0.40
Pedestrian passages, vehicular turning, loading and unloading points 50 0.40
Security lighting - very low risk 5 0.25
Security lighting - low risk 10 0.40
Security lighting - medium risk 20 0.40
Security lighting - high risk 50 0.40
Checkpoints 150 0.40
Gatehouses 200 0.40
Light traffic and low crime risk car parks 5 0.25
Medium traffic and medium crime risk car parks 10 0.25
Heavy traffic and medium crime risk car parks 20 0.25