How a warning works
1
~30 seconds out
As you approach a camera, you get one short, distinct alert about 30 seconds before it —
enough time to ease off calmly, never a last-second slam.
2
Only in the enforced direction
The alert fires only when you’re driving into the direction the camera enforces. Passing it
the other way stays silent.
3
At the camera's own limit
The limit roundel switches to the camera’s enforced speed, which often differs from the
road’s posted limit. If you’re already over the camera’s fineable threshold as you approach, the
alert is stronger.
Camera alerts use a different sound from the overspeed alert, so you always know which one
you’re hearing without looking at the screen.
Where the camera data comes from
WhySoSlow layers three sources so coverage is as complete as possible:- Ukraine’s official open dataset (
data.gov.ua) — the base, including camera type, direction, and, where published, the enforced speed. - OpenStreetMap — fills in cameras and directions the official set misses.
- Your own markers — anything still missing, you can add yourself (see Your limits & markers).