Samenvatting
The proposed lighting requirements for the rear future are: higher lighting levels, glare reduction and better diffusion of light intensity. Every four years from 1955 on there has been made an investigation into the types and number of lightings used in various urban districts, in order to know what types of lighting will be the best for the future. The development in the use of the various types of lamps is described, as well as their use in the future.