Give Aerial Progress Images a Construction Stage, Not Just a Date
Two images can be accurately dated and still be misleading when their construction stages are unclear. For a useful progress record, explain what was in place, what had been removed and what work was outside the capture scope. A date alone cannot supply that context.
Define the comparison question
State whether the images are intended to show site organization, visible progress, access or another agreed feature. Avoid calling a visual difference completion unless the responsible project record supports that status. Aerial imagery can preserve what was visible, while concealed work and acceptance decisions remain separate. Give the capture provider the question before selecting viewpoints or an output format.
Label changes that are expected
Record temporary stockpiles, staged equipment, coverings and work zones that could make one view look different from another. Keep those explanations attributed to the project contact instead of presenting them as findings independently verified by the imagery. Use consistent asset names and preserve original files so a later comparison can identify which stage each record represents.
Ask for a practical handoff
Request a simple image index with capture date, viewpoint and stage description where those details are included in the engagement. Specify who supplies and confirms the construction-stage labels. The FAA’s operating requirements still apply to any proposed flight; project urgency does not establish that a flight can proceed. If aerial access is unsuitable, discuss an alternative documentation scope rather than promising the same result from every method.
Copyable worksheet
Use one row for each field. Mark unknown information clearly and retain the original records.
| Field | Your note |
|---|---|
| Comparison question | ____________________ |
| Capture date and viewpoint | ____________________ |
| Construction stage supplied by whom | ____________________ |
| Temporary features affecting the view | ____________________ |
| Output and operational limitations | ____________________ |
Worked example
Illustrative example: one fictional progress image shows open excavation and another shows temporary sheeting. The index labels the stages instead of implying that the covered area was completed or inspected. The two views remain useful without asking the photograph to establish concealed-work acceptance.