Key:lane_markings
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| Description |
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Specifies if a highway has painted markings to indicate the position of the lanes 
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| Group: highways |
| Used on these elements |
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| Requires |
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| Status: de facto |
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The tag =* can be used on a road to make it clear whether the lanes on that road are marked with painted lines, coloured pavement, or in other permanent markings.
Usage
For many roads, this tag can be added without lanes=*, indicating that the road has no defined lanes. It can also be used with roads that have the tag lanes=* to indicate that those lanes are "virtual," or that vehicles clearly use the road as if those lanes existed, but they aren't explicitly marked.
Example
Possible tagging mistakes
See also
lanes=*- Quantifies the number of laneschange=*- Specifies painted dividers per lanedivider=*- Specifies the kind of central divider between laneswidth=*- The width of a featurewidth:carriageway=*- Carriageway (from kerb to kerb) specific width keywidth:lanes=*- Scarcely used key which indicates the width of each lanemarkings=*- The existence of markings on an element, typically for street parking.crossing:markings=*- The existence and style of pedestrian crossing markingsroad_marking=*- for mapping markings themselves- Initial talk on Tagging mailing list