18.7. Accuracy and Ground Control

Try these first

1. 1.

   What do GCPs stand for?

   Hint

   Think about what ground-level reference points might imply.

2. 2.

   What is the purpose of Check Points?

   Hint

   They check the data correctness.

3. 3.

   What does GCP stand for?

   • Ground Control Points
   • General Connection Points
   • Global Coordination Points

   Hint

   Think about the role of ground points in surveying.

4. 4.

   True or False: RTK provides corrections after the survey is completed.

   • True
   • False

   Hint

   Consider when RTK applies its corrections.

5. 5.

   You are tasked with planning an aerial survey for a new highway project. Discuss how many GCPs you might need and their placement strategy.

   Hint

   Think about the project size and areas needing precise measurements.

6. 6.

   You receive survey data showing significant discrepancies in modeled terrain caused by inaccurate GCPs. Propose solutions to rectify this.

   Hint

   Consider methods for assessing both the markers and the data collection process.