Paragraph 4 I1

The undertaker shall, before commencing the specified works, furnish to TfL such proper and sufficient plans of the specified works as may reasonably be required for the approval of the engineer and shall not commence the specified works until the plans have been approved in writing by the engineer or settled by arbitration.

If, within a period of 56 days beginning with the date on which plans have been furnished to TfL under sub-paragraph (1) above, the engineer has not notified their disapproval and the grounds of their disapproval, they shall be deemed to have approved the plans as submitted.

If the undertaker, in the course of carrying out specified works on protected property (i) uses any materials that the engineer considers inferior or unfit for the purpose intended, (ii) executes any work which will have an adverse effect on the safe and efficient operation of the roads or (iii) makes any material deviation from materials approved by the engineer, then TfL shall give notice to the undertaker that TfL desires itself to construct that part of the specified works which in the opinion of the engineer will or may affect the stability of, or the safe operation of protected property, then, provided that TfL has first given the undertaker the opportunity to remedy the specified works, if the undertaker desires such part of the specified works to be constructed, TfL shall construct it with all reasonable dispatch on behalf of and to the reasonable satisfaction of the undertaker in accordance with approved plans.

Upon signifying their approval of the plans the engineer may specify any protective works, whether temporary or permanent, which in their opinion should be carried out before the commencement of the specified works to ensure the stability of protected property, the continuation of the safe and effective operation of TfL’s operational undertaking including any relocation of works, apparatus and equipment necessitated by the specified works and the comfort and safety of users of the roads comprised within protected property and such protective works as may be reasonably necessary for those purposes shall be constructed with all reasonable dispatch, and the undertaker shall not commence the construction of the specified works until the engineer has notified the undertaker that the protective works have been completed.