The purpose of this Standard is to (a) specify requirements relating to the design, construction, measurement, maintenance and monitoring of a railway survey system, to be able to support various engineering activities undertaken within, and applicable to a modern railway environment. (b) achieve a standardised approach to railway engineering surveying; and(c) provide mandatory and recommended guidance so that the rail survey system developed is aligned with the safe operation of the railway network, in accordance with the requirements of Rail Safety National Law.