Proposal:Motorcycle:scale

Proposal status:	Abandoned (inactive)

[[Category:Proposals with "Abandoned" status|]]

Rationale

Provide a classification scheme for mapping the difficulty of trails suitable for motorcycling.

This is an adaption of several Proposals brought in concerning Mountainbike

Applies to

• highway=path
• highway=track

How to Map it - Usage, Tags and Values

The main key to be used is motorcycle:scale=1 to 5.
This shall be used for classifying the level of difficulty of using a trail or road.
Based on the German Denzel-Alpenstraßen-Skala [[1]]

motorcycle:scale applies primarily to ways. The difficulty should be based on the general difficulty over a longer stretch of a way, there can be a few places where the difficulty is higher. Those places should be classified on a point of the way.

Crux spots or very difficult single places

In order to highlight spots on a way, that feature a difficulty that is clearly more difficult than the way in general (e.g. one full grade more difficulty), on can highlight them by placing a node on the way with the difficulty to clear that node (do not highlight every switchback of a way however). If you put a point with motorcycle:scale=1-5 (0 makes no sense) outside of the way, then this shows a place that is more difficult, but can be circumvented.

motorcycle:scale=1-5

The main tagging scale.

Tag	Description	Example Picture
motorcycle:scale=1	Very easy to drive mountain route, also for beginners. normal roadway width of at least 6 m, good asphalt or concrete continuous edge protection no tight bends, at most a few, wide bends Gradients up to max. 9% suitable for all motorcycle types
motorcycle:scale=2	Track without significant requirements, even easy to drive for people not used to alpine roads. Two-lane carriageway, mostly paved Margin protection largely available, traffic-correct route Sufficiently wide turns with barely noticeable incline in the inserts Gradients up to max. 15% Suitable for all motorcycle types
motorcycle:scale=3	Route requires practice and safe driving technique on mountain roads. Mostly just two lanes, partly single lane with dodging Partially or completely missing asphalt surface, bad condition Margin security is missing to a large extent Many, strongly curved curves, tight turns with a stronger slope Over longer distances more than 15% slope Only partially usable for sports motorcycles Mostly unsuitable for racing bikes, possibly with wider tires possible, adjusted to high inclines
motorcycle:scale=4	Even for mountainous difficult route, requires far above average outstanding driving skills. Mostly single lane, few passages Barely maintained roadway; i.e. coarse gravel, heavily washed out or extended, side slopes possible, is slippery in the wet (mud, grass), possibly bottlenecks, passable fords Except for a few dangerous places no edge protection Very tight curves Strong gradients, partly at altitudes with thin air (over 2000 m) Recommended for off-road vehicles, coarse tire tread For Enduros, partly for touring bikes with sufficient ground clearance, coarse tire profile recommended Climbs
motorcycle:scale=5	Very difficult and dangerous route, use at your own risk Hardly existing lane, near to offroad Barely recognizable route conservation, coarse gravel, bare rock, sand, mud; dangerous bottlenecks, high risk of falling rocks, strong erosion and side slope, at times (depending on weather, season) impassable fords Completely unsecured margins, also on both sides exposed crest, heavily exposed Not always recognizable routing Extreme slopes, even at altitudes over 2000 m Only for offroad professionals with appropriate vehicles Only Enduros and Motocross bikes, possibly also dual sport bikes, a lot of ground clearance and suitable tires

Examples

Sort by "SG" (Schwierigkeits Grad = Difficulty level)
https://alpenrouten.de/alpenpaesse.html

See Also

• Motorcycling
• Approved_features/mtb:scale
• Mountain biking - General page on how to tag ways appropriate for mountain biking.
• sac_scale=* - a classification scheme for hiking trails