68. Network Rail must repay to the operator all reasonable and proper fees, costs, charges and expenses reasonably incurred by the operator—
(a)in constructing any part of the specified works on behalf of Network Raul or any protective works under the provision of paragraph 63(4) above including in respect of any permanent protective works, a capitalised sum representing the costs which may be expected to be reasonably and properly incurred by the operator in maintaining and renewing such works;
(b)in respect of the employment or procurement of the services of any inspectors, supervisory staff and other persons whom it is reasonably necessary to appoint for inspecting, signalling, monitoring and lighting guided busway property in order to prevent, so far as may be reasonably practicable, interference, obstruction, danger or accident arising from the construction of the protective works or specified works;
(c)resulting from any speed restrictions which in the reasonable opinion of the engineer are necessary by reason or in consequence of the construction of the protective works or specified work or from the substitution or diversion of services which may be reasonably necessary for the same reason;
(d)in respect of any additional temporary lighting of guided busway property in the vicinity of the specified works, being lighting made reasonably necessary by reason or in consequence of the construction of the specified works; and
(e)in respect of the approval by the engineer of plans submitted by Network Rail and the supervision by the engineer of the construction of the protective works or specified works.