WikiProject Thailand/Outdoor Tagging

A set of recommended tags aimed at improving the outdoor network in Thailand, with a particular emphasis on hiking, 4WD, mountain biking, and dirt biking activities.

Derived from international best practices and the minor road classification guidelines of Thailand.

Recommended Tags

highway

Indicates the type of road, street or path.

highway=*	main function	vehicles usability	width
unclassified	connecting settlements	all incl. 4WD	2m+
residential	access to housing	all incl. 4WD	2m+
track	agricultural or forestry	all incl. 4WD	2m+
service	access to buildings	all incl. 4WD	2m+
path	multi-purpose paths	2 wheels only	< 2m
footway	designated footpaths	pedestrian only	-
steps	flights of steps on footway	pedestrian only	-

Additional values can be found at https://wiki.openstreetmap.org/wiki/Key:highway#Roads

mtb:scale

Indicates the technical difficulty of a trail or segment with a mountain bike.

• based on downhill direction and favorable conditions like sufficient daylight and dry ground, independent of perceived danger or driving speed
• suitable for any double tracks / unpaved roads (0 to 1) or any paths / singletrails (0 to 6)

mtb:scale=*	surface	obstacles	bends	max gradient
0	gravel/packed	-	wide	mild
1	packed/loose	small roots, stones and ruts	wide	< 40% (22°)
2	packed/loose	large roots, stones and ruts	wide hairpins	< 70% (35°)
3	loose/talus	boulders and large roots.	tight hairpins, off-balance turns	> 70% (35°)
4	loose/talus	drags, debris and high steps	bail like hairpins	> 70% (35°)
5	loose/rock	boulder fields, debris, and landslides	bail like hairpins with obstacles	> 70% (35°)
6	bare rock	2m+ steps, rock faces	indistinguishable	> 100% (45°)

More details can be found at https://wiki.openstreetmap.org/wiki/Key:mtb:scale

sac_scale

Indicates the technical difficulty of a trail or segment on foot.

• suitable for any double tracks / unpaved roads (hiking) or any paths / singletrails

sac_scale=*	danger	use of hands	recommended boots	terrain
hiking	-	-	-	flat or mildly elevated
mountain_hiking	may pose fall hazards	-	Hiking	steady ascent
demanding_mountain_hiking	areas secured with chains/ropes	potentially needed	Hiking	loose scree, talus
alpine_hiking	quite exposed	needed in certain places	Trekking	steep grassy pitches, talus slopes
demanding_alpine_hiking	exposed	easy climbing sections	Mountaineering	rock scrambles, glaciers and snowfields
difficult_alpine_hiking	severely exposed	climbing pitches up to UIAA grade II	Mountaineering	craggy terrain, glaciers

More details can be found at https://wiki.openstreetmap.org/wiki/Key:sac_scale

dirtbike:scale

Indicates the technical difficulty of a trail or segment with a dirt bike (off-road motorcycle)

• suitable for any double tracks / unpaved roads (0 to 1) or any paths / singletrails (0 to 6)

dirtbike:scale=*	surface	obstacles	bends	max gradient
0	gravel/packed	-	wide	mild
1	packed/loose	small roots, stones and ruts	wide	< 40% (22°)
2	packed/loose	large roots, stones and ruts	wide hairpins	< 70% (35°)
3	loose/talus	boulders and large roots.	tight hairpins, off-balance turns	> 70% (35°)
4	loose/talus	drags, debris and high steps	bail like hairpins	> 70% (35°)
5	loose/rock	boulder fields, debris, and landslides	bail like hairpins with obstacles	> 70% (35°)
6	bare rock	2m+ steps, rock faces	indistinguishable	> 100% (45°)

More details can be found at https://wiki.openstreetmap.org/wiki/Key:dirtbike:scale

trail_visibility

Indicates the visibility level of a path.

trail_visibility=*	Trail
excellent	Unambiguous path
good	always visible
intermediate	mostly visible
bad	partly pathless
horrible	Often pathless
no	Mostly pathless

More details can be found at https://wiki.openstreetmap.org/wiki/Key:trail_visibility

smoothness

Indicates the usability of a road by wheeled vehicles.

smoothness=*	usability	surface	min. clearance
intermediate	all	best packed/gravel road	-
bad	all	good unpaved road	-
very_bad	high clearance only and below	ruts, potholes	18 cm
horrible	heavy-duty 4WD and below	ruts, rocks, loose ground	21 cm
very_horrible	specialized off-road (ATV, MTB, dirt bikes)	deep ruts and large obstacles	24 cm
impassable	on foot only	abandoned, debris, overgrown	n/a

More details can be found at https://wiki.openstreetmap.org/wiki/Key:smoothness

Examples

You can see more examples by visiting the following link:

https://docs.google.com/spreadsheets/d/e/2PACX-1vQxeh5ihyQuBCjy03oqQA4oTyMjUo8pOlxcbxhYl90cVFHeOKD4g6aJl_kZSBDZ2LTmjjbfcG6c8_bW/pubhtml?gid=127895747&single=true