What technology is highly recommended by DMC 2010-13 for accurate surveys?

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Multiple Choice

What technology is highly recommended by DMC 2010-13 for accurate surveys?

Explanation:
Accurate surveys hinge on knowing exact positions on the ground, and GPS technology provides those positions directly in a well-defined geographic reference frame. When used with differential corrections (like RTK or PPK), GPS can achieve centimeter-level accuracy and ties field measurements to a geodetic control network, which is why it’s prioritized in the DMC 2010-13 guidance. This makes GPS a reliable, repeatable foundation for surveying across different terrains and conditions, speeding data collection and reducing errors that come from line-of-sight limitations or subjective measurements. Other options can contribute valuable data, but they don’t inherently guarantee the same precision without additional GPS-based positioning and extensive processing. Aerial photography offers imagery, but requires complex photogrammetry and ground control to achieve precise coordinates. LIDAR provides detailed elevation data but also needs proper georeferencing and control points. Drones are useful platforms for data collection but rely on GPS for accurate georeferencing and still require robust control to reach high survey accuracy.

Accurate surveys hinge on knowing exact positions on the ground, and GPS technology provides those positions directly in a well-defined geographic reference frame. When used with differential corrections (like RTK or PPK), GPS can achieve centimeter-level accuracy and ties field measurements to a geodetic control network, which is why it’s prioritized in the DMC 2010-13 guidance. This makes GPS a reliable, repeatable foundation for surveying across different terrains and conditions, speeding data collection and reducing errors that come from line-of-sight limitations or subjective measurements.

Other options can contribute valuable data, but they don’t inherently guarantee the same precision without additional GPS-based positioning and extensive processing. Aerial photography offers imagery, but requires complex photogrammetry and ground control to achieve precise coordinates. LIDAR provides detailed elevation data but also needs proper georeferencing and control points. Drones are useful platforms for data collection but rely on GPS for accurate georeferencing and still require robust control to reach high survey accuracy.

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