Regulation 24

Survey of boundaries by long radiations must be avoided.

All boundary points must be marked on the ground unless they fall in inaccessible positions, such as within walls and pillars of buildings.

When any boundary point of a land lot cannot be marked by reason of obstructing features such as ponds or other structures, appropriate reference marks to facilitate the determination of the actual boundary point on the ground must be emplaced.

The appropriate reference marks mentioned in paragraph (3) may be placed on the intersecting boundaries as near as possible to the obstructing feature.

Every boundary mark emplaced must be at a station on a closed traverse, failing which, its position is to be determined by 2 independent sets of measurements, both angular and linear, from such a station, except that the second angular measurement must be made from a different back station, if available, from the one used in the first angular observation.

Previously surveyed boundaries need not be fully re‑measured, if —

In a sub-divisional survey, the re‑survey of boundaries not affected by the subdivision may be confined to the measurement of the lines required for the closing of traverses.

Along a straight boundary, marks must be emplaced on the ground at intervals not exceeding 200 metres.

All new boundaries, including natural feature boundaries, must follow straight lines.

Boundary points on natural feature boundaries need not be marked on the ground.

Boundaries that curve must be marked by straight lines on the ground such that no point on the curve is more than 20 centimetres from such straight lines.

In any survey where boundary lines cannot be measured directly, the registered surveyor must, wherever possible, emplace appropriate traverse marks on the nearest suitable structures, such as alongside the kerbs of metalled roads and driveways and, the coping of concrete drains, with sufficient short connections to the boundary points of the land lots.