User:CMoffroad/Key:dirtbike:scale

dirtbike:scale
Description
A classification scheme for the difficulty of trails for off-road motorcycles
Group: motorcycle
Used on these elements
Requires
highway=*
Useful combination
smoothness=* surface=* tracktype=* width=* incline=*
See also
motorcycle:scale=*
Status: in use
dirtbike:scale=* More details at taginfo
Tools for this tag
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Rationale

Provide a classification scheme for mapping the difficulty of trails suitable for off-road motorcycles, known as dirt bikes.

It's important to note that this scale specifically addresses trail conditions. The physical characteristics and examples provided for each scale level should help riders determine whether a trail is suitable for their skill level and the type of bike they are using.

To enhance the verifiability and precision of the scale due to its subjective nature, it is recommended to include additional tags such as smoothness=*, surface=*, tracktype=*, incline=*, and width=*.

Applies to

• single tracks: highway=path
• double tracks: highway=track
• unpaved roads: any alternative highway classifications featuring unpaved surfaces

How to map

This tag should be assigned to a way. You can either assign a specific dirtbike:scale=* value to the entire way or divide the way into segments with individual values.

The scale ranges from 0 to 6. Unlike mtb:scale=*, values should be chosen based on the typical conditions encountered when riding uphill.

Additionally,

• dirtbike:scale=? can be used to indicate that a specific route is known to be suitable for dirt bikes, although the exact difficulty scale is not known.
• dirtbike:scale=survey can suggest that a specific route might be suitable for dirt bikes, but it should be surveyed first.

Values

Value	Description	Examples
0	Well-maintained gravel or compacted roads. Smooth, packed surfaces. No sections with ruts, rocks, or roots are expected. Wide turns and gentle slopes (<= 15% gradient). No special skills are needed.
1	Ungraded tracks with navigable small obstacles. Loose dirt or gravel. Occasional obstacles such as small ruts, roots, and stones. Wide turns and gentle slopes (<= 20% gradient). Ankle deep water crossings. Requires Basic riding skills
2	Rough tracks with moderate obstacles and slopes Occasional obstacles like medium-sized ruts, rocks, roots Tight turns and moderate slopes (<= 25% gradient) Possibly narrow exposed sections. Knee deep water crossings. Requires intermediate riding skills and good control of the motorcycle.
3	Challenging trails with large obstacles and steep slopes Large-sized obstacles such as small boulders, large ruts and fallen trees. Technical sections with off-balance turns and steep slopes (<= 30% gradient). Very narrow and exposed sections. Mid-thigh deep water crossings. Requires constant concentration and advanced skills.
4	Hard Enduro trails with rugged terrain Very large obstacles such as medium-size boulders, fallen trees and loose debris. Very tight hairpins and high steps requiring pivot turns. Very steep slopes (<= 35% gradient). Waist deep water crossings. Requires perfect bike control with trial techniques.
5	Extreme Enduro trails with unforgiving terrain Severe obstacles such as massive boulders, deep crevices. Technical sections with exposed edges, and unpredictable surfaces. Extremely steep inclines (> 35% gradient) Waist deep or higher water crossings. Reserved for elite riders with exceptional skill, nerve, and experience.
6	Inaccessible trails Classify ways that are entirely impassable for dirt bikers.

Third-party Support

Renderers

Tool	Support	Status	Link	Last update
OsmAnd	Custom Rendering	Enabled	https://github.com/osmandapp/OsmAnd-resources/pull/829#event-6708993295	May 2022
OsmAnd	Route Overlay	Pending	https://github.com/osmandapp/OsmAnd/issues/18756#issuecomment-2053672139	Apr 2024

Possible tagging mistakes

motorcycle=no

The tag motorcycle=no specifies that it is legally prohibited to ride on a particular path. However, it is sometimes mistakenly used to suggest that a path is unsuitable or hazardous for riding. This constitutes a tagging mistake and should be corrected by using dirtbike:scale=*. On the other hand, roads that are legally off-limits for riding should not carry the dirtbike:scale=* tag.

See also

• Motorcycling Tags