Abstract
Previous rear lighting studies were reviewed and a research program carried out. Experiments concerned with the coding of signal lights showed that separation of lamps by function and colour was effective, the separation of lamps by function and colour was effective. It is recommended that rear lights should be green blue turn lamps amber, and stop lamps red. An analytical car following simulation showed that use of such a system should reduce rear end collision. There was a negligible effect of law doses of alcohol upon response to rear signals should be augmented by forward mounted, amber repeater signals.