COMFORT - Gradiënt
The total gradient is measured as the total ascending and descending over the whole traject.
This criterium is at a higher level than the sleep slopes and asseses the METERS of ascending & descending height differences per section.
It can be measured (per section)automatically by google maps, but also by using a trackr device or App (like STRAVA) which automatically measures the total gradient.
For a LEVEL 4, the total elevation can not be higher than 50m per 10km (0,5% on average)