The 0–100 wind score served us well, but it was abstract: a score of 80 meant “mostly tailwind” without telling you how much. From today, KOMpass scores segments by the signed effective tailwind — the component of the wind blowing along the segment's direction of travel, in km/h (or mph if you're on imperial).
How it works
We project the live wind vector onto the segment's bearing. Positive numbers mean tailwind, negative numbers mean headwind, and zero means calm or pure crosswind. A +18 km/h reading on a segment is literally 18 km/h of tailwind pushing you down the road;-7 is 7 km/h in your face.
What changed in the UI
- Signed tailwind badges everywhere. Segment lists, the map, the segment details panel, and the Advanced Analysis header all show the same signed number, always with a leading
+or-. - Unit-aware. The figure follows your unit preference — km/h on metric, mph on imperial — while the underlying scoring stays consistent.
- Same red→yellow→green colour ramp, now anchored to ±25 km/h of effective tailwind so colours mean the same thing on every segment.
- Alert thresholds in real units. The watchlist and global alert threshold are now expressed in km/h (or mph) of tailwind — set “notify me at +15 km/h” and that's exactly what you'll get. Existing thresholds were migrated automatically.
Why we made the change
A score of 80 was hard to act on. “+18 km/h tailwind” is a number you can feel — and one that lines up directly with the effective wind speed used in the power and pacing calculations. One number, one meaning, end to end.