What type of survey is used in field compilation of maps without disturbing the azimuth?

The choice of the plane table survey as the correct answer is based on its unique characteristics that allow for accurate field compilation of maps while maintaining the established azimuths. In a plane table survey, the surveyor uses a plane table set on a stable point, where they can directly draw the topography and features of the area being surveyed. This method is particularly advantageous as it provides real-time visualization and allows for on-the-spot adjustments without needing to disturb the established azimuth.

Additionally, the plane table survey does not rely on calculations that might alter the orientation or established reference lines, making it effective for situations where maintaining consistency with azimuth is essential. This is beneficial for creating maps that need to accurately represent existing conditions without introducing disturbances that could arise from using other surveying techniques.

While triangulation involves measuring angles from known points to find locations, it isn't as direct or effective for field compilation without disturbing azimuths as the plane table method. Zoned surveys involve subdividing areas into zones for specific studies and may not focus on maintaining azimuth as their primary goal. Total station surveys, while highly accurate and helpful in data collection, often require calculations that might affect the relationship of point locations to the established azimuth. Each of these alternatives has its applications