Trailforks scans users ridelogs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
Trail Last Ridden
Trailforks scans ridelogs to determine the last time a trail was ridden.
< 2 days
< 1 week
< 2 weeks
< 1 month
< 6 months
> 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
Colors indicate trail is missing specified detail.
Trailforks scans ridelogs to determine which trails are ridden the most in the last 9 months.
Trails are compared with nearby trails in the same city region with a possible 25 colour shades.
Think of this as a heatmap, more rides = more kinetic energy = warmer colors.