This Standard specifies requirements for the design, construction and performance of traffic signal lanterns that use either incandescent, or light emitting diode (LED) light sources and are intended to control the movement of vehicles, including bicycles, and pedestrians. It does not apply to the control equipment that may be necessary for the functioning of the lanterns.For vehicular lanterns, two basic levels of performance are specified, namely, for general purpose lanterns and for extended range lanterns. Requirements are also specified for a variety of special purpose lanterns.NOTES:1 Requirements for the use of traffic signal lanterns in the control of vehicular and pedestrian traffic are set out in the AS 1742 series.2 See Appendix A for the information which should be supplied with an inquiry or order for traffic signal lanterns to this Standard.