Key:maintenance

maintenance=* is a de-facto tag which has been used to describe details what is done to maintain a highway=* by its owners.

See also snowplowing=* and winter_service=*.

Rarely it has been used to specify the subjective the general state of maintenance of a feature, but this may be subjective.

Common values

Key	Value	Meaning	Usage within the database
maintenance	gritting	This feature is gritted in freezing conditions.	Common, typically on UK highways.
maintenance	salting	This feature is salted in freezing conditions.	Common, typically on UK highways.
maintenance	ok	The feature is in a good state of repair, or is frequently maintained.	Uncommon, but probably fairly unambiguous.
maintenance	poor	The feature is in a poor state of repair or suffers from poor maintenance, but can still be used.	Handful of objects.
maintenance	no	The feature is unmaintained, but still operational.	Suggested. Semantically viable.
maintenance	needs_repair	The feature is operational, but in need of repair.	Suggested. Semantically viable.
maintenance	*	User-defined values	You may use your own values. Be descriptive and terse, and check taginfo first. Document any values you use commonly here.

Rare values

Key	Value	Meaning	Usage within the database
maintenance	poor	The feature is in a poor state of repair or suffers from poor maintenance.	A few hundred uses
maintenance	ok	The feature is in an acceptable state of repair.	A hundred uses
maintenance	no	The feature is unmaintained.	Rare
maintenance	needs_repair	The feature is in need of repair.	Rare
maintenance	*	User-defined values	You may use your own values. Be descriptive and terse, and check taginfo first. Document any values you use commonly here.

Caveats

Better tagging schemes exist for features whose lack of maintenance has rendered them unusable for their intended purpose: see below.

See also

• snowplowing=*
• winter_service=*
• disused=*
• abandoned=*
• maintained=*
• Proposal:Key:winter_service