Which of the following is a common reason for using reciprocal leveling in surveying?

Reciprocal leveling is primarily used to calculate elevation changes, particularly between two points that are difficult to measure directly due to obstacles or varying terrain. In reciprocal leveling, measurements are taken back and forth between two points to minimize errors that might occur due to atmospheric conditions, like refraction, or other factors that could influence readings.

This method is especially beneficial in cases where a direct line of sight may be obstructed, allowing surveyors to obtain reliable elevation data without needing to physically access the most challenging points directly. It enhances the accuracy of elevation determination by averaging the measurements, thereby reducing systematic errors.

In contrast, while the other options mention tasks associated with surveying, they do not specifically relate to the primary purpose of reciprocal leveling, which is focused on accurately determining elevation differences rather than creating maps, measuring distances, or enhancing visibility.