An integrated system for vehicle lighting and signalling. Paper presented at the Illuminating Engineering Society (IES) Conference, March, 1976.

The information needed by the vehicle driver in his driving task are conveyed partly by objects that are placed intentionally and that convey a coded message (signals) and partly by environmental cues that are "just there". Markers (markings) may be considered as an in-between form. At night, lighting is needed to make these objects visible. Signals and some markers are constructed as lighting equipment ("signalling"). The visibility of environmental cues usually is realised by directing light onto them ("illumination"). These considerations are the basis for a proposal for an integrated vehicle lighting system, that includes both signalling and lighting, and is effective under different ambient situations