The procurement strategy for any future light rail project should make adequate provision for the uncertainties concerning the location of utilities and redundant equipment belonging to present and past utility companies, particularly in urban centres. In particular, although it is not possible to be prescriptive about the appropriate timescale:
• the procurement strategy should include a requirement that the route of the track should be exposed and cleared of utilities well in advance of the infrastructure contractors commencing their work;
• the procurement strategy should specify the period that should elapse between the exposure and clearance of the route and the commencement of construction, to ensure that the contractors have unrestricted access to the construction site and may proceed with the infrastructure works unencumbered by the presence of utilities; and
• in fixing the period mentioned above, the procurement strategy should take into account the length of the route to be constructed, past experience of the time taken for the diversion of utilities in light rail projects in other parts of the UK and any additional constraints peculiar to the project such as an embargo on work to divert utilities during particular periods such as the festive season or special events (e.g. the Edinburgh Festival).