User:Frodrigo/Relation:Waterway

Tags

Key	Value	Comment
type	waterway
waterway	river, canal, stream...	Really needed ? All part of waterway may have different type; but this can help distinguish main aspect of this waterway.
name	Waterway name	Optional but recommended
ref:*

Members

Type	Role	Recurrence	Comment
	main_stream (or none)	one or more	waterway=river, waterway=canal, waterway=stream...
	side_stream	optional	Same relation kind as this, a branch of main stream than return to it. Ordered by end of side stream (integrated in tributary sort).
	side_stream	optional	waterway=river, waterway=canal, waterway=stream... a branch of main stream than return to it.
	tributary	optional	Same relation kind as this, for direct tributary. Ordered from upstream to downstream (integrated in side stream sort). Recurse on tributary relation member allow rebuild of drainage basin from any part. Avoid need of relation type=watershed.
	tributary	optional	Way with waterway=*. Include way as role tributary only when this way is not part of an other type=waterway relation and the way is a direct tributary. This case is for short waterway in one way (like small stream). By construction, this relation schema don't allow tributary on tributary way. Ordered from upstream to downstream.
	riverbank	optional	Multipolygone of waterway like in Relations/Proposed/Rivers. Relation can have waterway=riverbank, but all way part of this relation already have it.
	spring	optional	natural=spring

Links

• WikiProject_Rivers and it talk page
• Relations/Proposed/Rivers and it talk page