Check ServiceLink / RouteLink

[skinkie]

1. Check if the distance is not smaller than as the crow flies between FromPointRef / ToPointRef
2. Check if the distance of the FromPointRef is < 15 meters from the first coordinate in the LineString
3. Check if the distance of the ToPointref < 15 meters from the last coordinate in the LineString
4. Check if the distance of the LineString ~ has at least a 10 meter accuracy

Above checks may hint for reverse coordinates.