Which cadastral survey method uses ground survey to determine bearings and distances rather than photo maps?

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Multiple Choice

Which cadastral survey method uses ground survey to determine bearings and distances rather than photo maps?

The main idea here is how parcel boundaries are determined: by either ground measurements or by photo-derived data. Ground-based determination of bearings and distances points to numerical cadastre. This approach builds the cadastral plan from actual field measurements—lengths and angles captured on the ground and then computed into coordinates—without relying on photo maps. Graphical cadastre, in contrast, relies on graphical plotting from photo maps or imagery, using photogrammetric data to delineate boundaries. Control surveys focus on establishing a network of known reference points to support surveys rather than defining parcel boundaries from ground measurements alone. So the method that uses ground survey to determine bearings and distances, rather than photo maps, is numerical cadastre.

The main idea here is how parcel boundaries are determined: by either ground measurements or by photo-derived data. Ground-based determination of bearings and distances points to numerical cadastre. This approach builds the cadastral plan from actual field measurements—lengths and angles captured on the ground and then computed into coordinates—without relying on photo maps.

Graphical cadastre, in contrast, relies on graphical plotting from photo maps or imagery, using photogrammetric data to delineate boundaries. Control surveys focus on establishing a network of known reference points to support surveys rather than defining parcel boundaries from ground measurements alone. So the method that uses ground survey to determine bearings and distances, rather than photo maps, is numerical cadastre.

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