Tag:crossing=unmarked

From OpenStreetMap Wiki
Jump to navigation Jump to search
Public-images-osm logo.svg crossing = unmarked
Example crossing unmarked.jpg
Description
Pedestrian crossings without road markings or traffic signals Show/edit corresponding data item.
Group: crossings
Used on these elements
may be used on nodesmay be used on waysshould not be used on areasshould not be used on relations (except multipolygon relations)
Useful combination
Status: approvedPage for proposal

This tag is used for pedestrian crossings without zebra crossing or traffic signals. By a structural measure the transition should be recognizable.

In areas where sidewalks are mapped as separate geometries, it is commonly seen that every node at which a sidewalk crosses a road, an unmarked crossing is added. So this is something to look out for as data consumer, crossings tagged like this often do not have any recognizable structural measure that deserve to be called a dedicated crossing.

How to map

Set a node node on the highway where the transition is and add highway=crossing + crossing=unmarked.

If the crossing is also mapped as a way way, tag it as highway=footway footway=crossing crossing=unmarked or highway=cycleway cycleway=crossing crossing=unmarked as appropriate.

Map examples

Example in iD of mapping an unmarked crossing in the U.S.

Tags to use in combination

Tricky cases

Crossing with traffic signs and traffic_calming=table, without zebra crossing or traffic signals. osm node
Note that in at least some cases crossings of driveways with sidewalks were also marked as highway=crossing and in such case crossing=unmarked would be the best fit - if such place would be considered as taggable with highway=crossing
Unmarked place where pedestrian cross while following sidewalk along, with lowered kerbs. Is it highway=crossing crossing=unmarked? osm node
Road interrupting footway, crossed here by pedestrians. Is it qualifying as highway=crossing crossing=unmarked? osm
Crossing with distinct surface, without road markings. Is it crossing=unmarked or crossing=marked? osm

Regional considerations

United States

Many localities have laws against jaywalking, making it especially important to map a crossing at any point that is designated for crossing the street, not just where there is extensive physical infrastructure for a pedestrian crossing.

Some states have laws that establish an implied crossing on every side of every intersection by default[1] or wherever one is implied by a sidewalk flanking the intersection,[2] unless otherwise prohibited by a regulatory sign. This can technically result in very unsafe crossings that most people would not recognize as crossings, such as across a busy four-lane road without any pedestrian infrastructure. It would be reasonable to omit such crossings in favor of safer ones.

In some areas, it is common for a crosswalk to have pedestrian signals but lack road markings. There was a proposal to tag such crosswalks as highway=crossing crossing=unmarked crossing:signals=yes, but highway=crossing crossing:markings=no crossing:signals=yes has more recently become possible. A crosswalk at a signalized intersection could have neither markings nor pedestrian signals, requiring pedestrians to observe the same traffic lights as cars going in the same direction.[3][4][5] This proposal would introduce crossing:signals=shared for this situation, which is common in some places.

Software support

Renderers

OSM2World avoids applying a white dash along both sides of the crossing way. [1]

osm2streets (see AB Street) draws transverse white lines, as opposed to parallel white bars that denote crossing=marked.

Routers

OsmAnd penalizes the crossing by more time than crossing=uncontrolled but less time than crossing=traffic_signals. [2]

GraphHopper infers crossing:markings=no crossing:signals=no from crossing=unmarked. [3]

See also

References

External links