5.—(1) In constructing or maintaining any of the scheduled works, the undertaker may—
(a)deviate laterally from the lines or situations shown on the plans within the limits of deviation for that work shown on those plans; and
(b)deviate vertically from the levels shown on the sections—
(i)to any extent not exceeding 3 metres upwards; and
(ii)to any extent downwards as may be found to be necessary or convenient.
(2) The undertaker may construct and maintain any emergency and maintenance access track comprised in a scheduled work at a different level to the guided busway which it adjoins.
(3) The undertaker may in constructing and maintaining any part of the authorised guided busway provide within the limits of deviation such gaps in the mode of guidance adopted and such number of ways, cross-overs, lay-bys, bus parking areas and sidings as may be necessary or expedient.