1. Specification for the Reinstatement of Openings in Highways (SROH);Department for Transport,2010
2. Public Utilities Street Works Act 1950;HMSO,1950
3. New Roads and Street Works Act 1991;NRSWA,1991
4. Roads and the utilities—review of the public utilities street work act 1950;Horne,1985
5. Department for Transport, Specification for the Reinstatement of Openings in Highways-2nd Edition, 2002, The Stationery Office (TSO).