scope:

This Standard specifies performance and design requirements for lighting schemes for tunnels and underpasses. It also specifies the luminaire data and other design data that is needed to facilitate the lighting design and the assessment of compliance with the requirements of this Standard.

NOTE: The basic steps of the design process are set out in a flow diagram in Appendix L.

This Standard does not deal with lighting schemes for underpasses catering solely for pedestrians/cyclists, which are covered by AS/NZS 1158.3.1. Underpasses and shorter tunnels are often designed to carry a mixture of motorized traffic, cyclists and pedestrians but long tunnels typically exclude all but motorized traffic. Current practice for underpasses within roads designated Category P is not to provide daytime lighting, and no recommendations are offered.

This Standard is intended to be read in conjunction with AS/NZS 1158.0, AS/NZS 1158.1.1, AS/NZS 1158.2, AS/NZS 1158.1.2 and AS/NZS 1158.6.

NOTE: Computer based design calculation procedures are given in AS/NZS 1158.0, AS/NZS 1158.2 and Appendices E and H of this Standard. Guidance on the design, installation, operation and maintenance of lighting schemes is given in AS/NZS 1158.1.2.