Cleaning a Track
- Choose Edit ▸ GPS Cleanup and pick a track.
- Turn on the cleanup options you want in the right panel (see the table).
- The map shows the original in gray, the cleaned track in green, and removed points in red; the legend above the map explains the colors.
- Compare points, distance and total ascent under “Before & After”.
- Click “Save as New Item”, or “Overwrite Original Points…”.
| Option | What it does |
|---|---|
| Too fast | Removes points that would need more than the limit (30 km/h by default) to reach. Needs timestamps. Walking is about 5 km/h; raise the limit for trips with a ride, or leave it off. |
| Poor positioning accuracy | Removes points whose reported error exceeds the limit (50 m by default). Imported files mostly have no accuracy data, so this works for phone-recorded tracks. |
| Sudden spikes that jump away and come back | Removes points that briefly jump off the route and return at once. |
| Smooth elevation | Reduces elevation noise so total ascent is not inflated. |
| Smooth positions | Smooths latitude and longitude with a moving average; the window size is adjustable. |
| Simplify Points | Drops redundant points within a tolerance to make the file smaller. |
Too fast
What it does：Removes points that would need more than the limit (30 km/h by default) to reach. Needs timestamps. Walking is about 5 km/h; raise the limit for trips with a ride, or leave it off.
Poor positioning accuracy
What it does：Removes points whose reported error exceeds the limit (50 m by default). Imported files mostly have no accuracy data, so this works for phone-recorded tracks.
Sudden spikes that jump away and come back
What it does：Removes points that briefly jump off the route and return at once.
Smooth elevation
What it does：Reduces elevation noise so total ascent is not inflated.
Smooth positions
What it does：Smooths latitude and longitude with a moving average; the window size is adjustable.
Simplify Points
What it does：Drops redundant points within a tolerance to make the file smaller.
Screens may vary by app version. See Support and FAQ if you need help. Support