Car park

A car park (32m x 50m) with a medium volume of traffic at an office complex or a department store should be illuminated with at least 10lx in order to allow easy orientation. A reduction of the illumination level to 5 lx is recommended at night. As soon as persons enter the car park, or cars drive in, the degree of illuminance is raised to 10lx again. Pole-top luminaires with precision reflectors are ideal for illuminating the area. With a pole height of 5 m and luminaire spacing of 21 m, three pole-top luminaires on the two long sides of the car park and three double pole-top luminaires of the same type in the centre of the useful area are sufficient to ensure uniform light distribution and the required degree of illuminance.

Lighting calculations
Summary
DIALux project