What are correction lines used for in land surveying?

Correction lines are specifically utilized in land surveying to account for the curvature of the Earth. During the surveying process, particularly in large areas, the Earth's curvature can significantly affect measurements. As a result, correction lines help ensure that the survey data remains accurate over long distances. This is essential because if the Earth's curvature is not factored into the measurements, it could lead to discrepancies in property boundaries and land area calculations.

In contrast, other options address different aspects of surveying and land management. While property boundaries are defined through various survey techniques, those techniques may not necessarily involve correction lines. Marking construction zones and identifying water bodies relate to practical applications in construction and environmental management, rather than the mathematical corrections necessary for maintaining accuracy over the curvature of the Earth in a surveying context.