According to DAO 2007-29, control surveys are defined and classified into which two types?

Prepare for the DMC Administrative Order Test No. 2007-29. Use flashcards, interactive quizzes, and detailed explanations for each question to enhance your understanding. Master the content with our comprehensive practice material and succeed!

Multiple Choice

According to DAO 2007-29, control surveys are defined and classified into which two types?

Control surveys are defined and classified into two types: geodetic control surveys and plane control surveys. Geodetic control surveys establish a broad network whose coordinates are tied to a geodetic datum, accounting for the Earth's curvature and often using long baselines and high-precision methods such as triangulation, trilateration, and GNSS to link points across large areas. Plane control surveys are confined to smaller areas where the surface can be treated as flat, using a local datum to create a local coordinate framework suitable for design and construction. This distinction guides which methods, accuracies, and datums to apply based on project scope and requirements.

Control surveys are defined and classified into two types: geodetic control surveys and plane control surveys. Geodetic control surveys establish a broad network whose coordinates are tied to a geodetic datum, accounting for the Earth's curvature and often using long baselines and high-precision methods such as triangulation, trilateration, and GNSS to link points across large areas. Plane control surveys are confined to smaller areas where the surface can be treated as flat, using a local datum to create a local coordinate framework suitable for design and construction. This distinction guides which methods, accuracies, and datums to apply based on project scope and requirements.

More practice questions