Lower Order Traverses

(1) (a) All main control traverses shall be observed to third order standard; (b) Where such lines are measured by means of electronic distance measuring equipment sufficient observations shall be taken to eliminate any ambiguities; (c) All such field operations shall be appropriate to a standard of accuracy of not less than 1:10,000. (2) (a) All other control traverses for the survey of rectilinear boundaries shall be observed to fourth order standard; (b) Field operations for such surveys shall be appropriate to a standard of accuracy of 1:5,000 but computational misclosures shall be allowed to the same degree of accuracy as the datum supplied by the Commissioner of Land Surveyors 21 (c) A surveyor shall not use a loop traverse closing on his starting point if it is practicable to traverse between two previously fixed (d) When a surveyor is unable to close his work within the limits prescribed by the Commissioner of Lands and Surveys, the Commissioner may at his discretion authorise or instruct the surveyor, to accept a lower order of misclosure, otherwise the surveyor shall close his new work by a loop traverse, orientation being confirmed in a satisfactory manner. (3) (a) The survey of curvilinear boundaries such as roads, rivers, high water marks, etc., shall be made by subsidiary traverse or by air-survey Provided that this regulation shall not preclude any more accurate method. (b) Surveys of curvilinear boundaries shall be carried out to a standard of accuracy appropriate to the plotting scale of the plan of the survey. (4) Where traverses are very short, a reasonable misclosure shall be allowed irrespective of the minimum requirements, under these Regulations.