Methodology
Transparent waits, not fake precision.
Wait Time Radar does not pretend every line has a clean live API. It gives useful planning estimates with visible confidence labels.
Quick answer
How Wait Time Radar estimates wait ranges, confidence labels, and source quality for public lines.
Confidence labels
HighRecognized airport code or strong official-directory context.
MediumSearch text clearly names a category or nearby public places are found from open map data.
LowAddress-only or broad search where the category/source is inferred.
Formula
Estimated wait = category baseline multiplied by a time-of-day factor, then shown as a practical range rather than a fake exact number.
Sources
Airport and agency pages link to official sources where possible. Nearby place discovery can use OpenStreetMap/Nominatim/Overpass in the browser and is clearly attributed. Passport agency context points to Travel.State.gov. TSA, CBP, DMV, and passport conditions can change quickly.