What is the method called when you determine the position of an unknown survey point by using directions observed from the point to known points?

• A. Resection
• B. Intersection
• C. Traversal
• D. Forward intersection

Answer: (A)

This method uses directions measured from the unknown point toward known points to locate that unknown. You stand at the unknown point and observe the bearings to at least two points whose coordinates you already know. Each bearing defines a line that passes through the unknown point and the corresponding known point. By tracing or plotting these lines, their intersection pinpoints the position of the unknown point. This approach relies on angular measurements from the unknown and is distinct from methods that measure from known points toward the unknown. With more known points, the solution can be checked for consistency and accuracy improves.