Common use of Control Points Clause in Contracts

Control Points. 4.3.1 The Consultant shall make use of new control points and pick up all existing control points if any. 4.3.2 The Consultant shall provide a list showing the co-ordinates and elevation of each control point and survey station 4.3.3 The new control points shall be inter-visible and not more than 200m apart. 4.3.4 As a general rule, control points shall be placed on the periphery of the area to be surveyed, within the Railway reserve and so spaced that a network of further control points can be established if required. 4.3.5 Control points shall be located in such a position as to minimise the likelihood of disturbance or damage 4.3.6 The Consultant and the Employees Agent shall agree on the minimum envisaged number of control points required for the survey. 4.3.7 The control points shall be 600 mm long Y-standard driven into the ground leaving at least 20mm protruding, which must be encased in concrete of at least Φ200mm and 100mm deep, or any other method which will protect these points permanently, as agreed between the Consultant and the Employers Agent. 4.3.8 Each control point shall be provided with a rust proof metal tag set into the concrete indicating its number. 4.3.9 Each control point shall have its own photograph accompanied with the survey.