SCHEDULES
SCHEDULE 4FOR THE PROTECTION OF HEATHOW AIRPORT LIMITED
6
1
The Company shall, before commencing the authorised works—
a
agree with the authority a scheme for the regulation of the construction of the authorised works, to include provisions restricting or regulating working areas, the lighting of the authorised works, the height of the authorised works and of surface equipment serving them or used in their construction, hours of surface working, the hours for and methods of disposal of spoil, routes and times of movement of construction traffic, parking areas for vehicles, cleansing of working areas, vehicles and vehicle routes and parking areas, the disposal of water found in constructing the authorised works and other such matters as may be agreed by the authority and the Company,
b
furnish to the authority for their reasonable approval proper and sufficient plans of the authorised works and a statement of the time or times at which and the order in which the authorised works are to be constructed,
and shall not commence the authorised works until the said scheme and the plans of the authorised works and the statement of the time or times at which and the order in which the authorised works are to be constructed have been approved in writing by the authority or settled by arbitration.
2
If within 42 days after such plans and statement have been furnished to the authority the authority shall not have intimated their disapproval thereof and the grounds of their disapproval, they shall be deemed to have approved the same.