4.—(1) The undertaker must before commencing Works No. 10b provide a copy of the detailed plans and specifications of the new access road, the Gailey Park roundabout, any permanent and/or temporary accesses to the parties' premises, all existing and proposed service media affected by Works No. 10b and all proposed traffic management arrangements to the parties in draft and allow the parties 28 days to comment on them, and following receipt of all information reasonably required by the parties the undertaker must have regard to any reasonable comments made by the parties in respect of the detailed design of the new access road, the Gailey Park roundabout, any permanent and/or temporary accesses to the parties' premises, all proposed service media affected by Works No, 10b and all proposed traffic management arrangements.
(2) The undertaker must repay to the parties the reasonable and proper fees, costs, charges and expenses reasonably incurred by the parties in respect of their review of the details submitted by the undertaker pursuant to sub-paragraph (1) and any subsequent discussions regarding the specification of the new access road within 28 days of written demand.