49. The undertaker shall repay to LRT all costs, charges and expenses reasonably incurred by LRT—
(a)in constructing any part of the specified works on behalf of the undertaker or any protective works under the provisions of paragraph 43 above, including, in respect of any permanent protective works, a capitalised sum representing the costs which may be expected to be reasonably incurred by LRT in maintaining and renewing such works;
(b)in respect of the employment of any inspectors, signalmen, watchmen and other persons whom it is reasonably necessary to appoint for inspecting, signalling, watching and lighting its pier in order to prevent, so far as may be reasonably practicable, interference, obstruction, danger or accident arising from the construction or failure of the specified works;
(c)resulting from any speed restrictions which may, in the opinion of the engineer, require to be imposed by reason of the construction or failure of the specified works, 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 its pier in the vicinity of the specified works, being lighting made reasonably necessary by reason of the construction or failure of the specified works; and
(e)in respect of the consideration of plans and the supervision by the engineer of the construction of the specified works.