The Nottingham Express Transit System Order 2009

9.—(1) If any permanent or temporary alterations or additions to railway property, or any protective works under paragraph 5(4), are reasonably necessary during the construction of a specified work, or during a period of 12 months after the commencement of regular revenue-earning operations on the authorised tramway comprised in any specified work, in consequence of the construction of a specified work, such alterations and additions may be carried out by Network Rail Infrastructure Limited and if Network Rail Infrastructure Limited gives to the promoter reasonable notice of its intention to carry out such alterations or additions, the promoter shall pay to Network Rail Infrastructure Limited the reasonable cost of those alterations or additions including, in respect of any such alterations and additions as are to be permanent, a capitalised sum representing the increase of the costs which may be expected to be reasonably incurred by Network Rail Infrastructure Limited in maintaining, working and, when necessary, renewing any such alterations or additions.

(2) If during the construction of a specified work by the promoter, Network Rail Infrastructure Limited gives notice to the promoter that Network Rail Infrastructure Limited desires itself to construct that part of the specified work which in the opinion of the engineer is endangering the stability of railway property or the safe operation of traffic on the railways of Network Rail Infrastructure Limited then, if the promoter desires that part of the specified work to be constructed, Network Rail Infrastructure Limited shall assume construction of that part of the specified work and the promoter shall, regardless of any such approval of a specified work under paragraph 5(1), pay to Network Rail Infrastructure Limited all reasonable expenses to which Network Rail Infrastructure Limited may be put and compensation for any loss which it may suffer by reason of the execution by Network Rail Infrastructure Limited of that specified work.

(3) If the cost of maintaining, working or renewing railway property is reduced in consequence of any such alterations or additions a capitalised sum representing such saving shall be set off against any sum payable by the promoter to Network Rail Infrastructure Limited under this paragraph.