available_checks.md

Available Checks

This document is a list of tables with a description and link to documentation for each check. Each table is organized by check type.

Areas

Check Name	Check Description
ConcerningAngleBuildingCheck	This check attempts to flag building that have angles between 80 and 89.9 degrees or between 90.1 and 100 degrees and need to be squared.
AreasWithHighwayTagCheck	The purpose of this check is to identify Areas attributed with highway tags.
OceanBleedingCheck	The purpose of this check is to identify streets, buildings, and railways that bleed into (intersect) an ocean feature.
OverlappingAOIPolygonCheck	The purpose of this check is to identify areas of interest (AOIs) that are overlapping one another.
PedestrianAreaOverlappingEdgeCheck	The purpose of this check is to identify pedestrian areas overlapping with roads that are not snapped to car navigable edges.
PoolSizeCheck	The purpose of this check is to identify pools that are larger than 5,000,000 square meters or smaller than 5 square meters. This check was created to be used as a tutorial for developing new checks.
ShadowDetectionCheck	The purpose of this check is to identify floating buildings.
SpikyBuildingCheck	The purpose of this check is to identify buildings with extremely sharp angles in their geometry.
WaterAreaCheck	Find overlapping water areas and water areas that should have a waterway.
WaterbodyAndIslandSizeCheck	The purpose of this check is to identify waterbodies and islands which are either too small or too large in size.

Highways

Check Name	Check Description
AtGradeSignPostCheck	The purpose of this check is to identify at-grade intersections that are not part of destination sign relations.
EdgeCrossingEdgeCheck	The purpose of this check is to identify Edges intersecting another Edge(s) that do not share the same Node (meaning they are not well-connected) nor have proper layer tagging on one of these Edge(s) (meaning there should be a layer tag for one of the Edges).
FloatingEdgeCheck	The purpose of this check is to identify Edges that are not accessible or navigable from the rest of the Edge network due to lack of connectivity or access restrictions.
InconsistentRoadClassificationCheck	The purpose of this check is to identify roads, that transition from one classification to another and then back to the original classification.
InvalidPiersCheck	The purpose of this check is to identify piers(OSM Ways with man_made=pier tag) that are ingested in Atlas as edges with linear or polygonal geometry without an area=yes tag
LongSegmentCheck	This check identifies long segments/edges (length is more than minimumLength).
MalformedRoundaboutCheck	The purpose of this check is to identify roundabouts mapped in the opposite direction of traffic. The check takes into consideration countries with both left-side and right-side traffic. There are three types of map errors that will be flagged by this check: 1. Wrong-way-roundabouts, 2. Multi-directional roundabouts, and 3. Roundabouts with poor geometry.
OverlappingEdgeCheck	The purpose of this check is to identify edges that share the same two consecutive geometry points.
RoadLinkCheck	Verifies that one end or the other of an edge is a fork to/from a road of the same class, that is not a link.
RoundaboutClosedLoopCheck (Deprecated)	The purpose of this check is to identify Roundabout Edges that are bi-directional or have an end Node with less than 2 connections. This check has been deprecated and is no longer active.
RoundaboutConnectorCheck	The purpose of this check is to identify roads that connect to a roundabout at too sharp an angle
RoundaboutValenceCheck	The purpose of this check is to identify OpenStreetMap (OSM) tagged roundabouts that have an unusual number of edges connected to them.
RoundaboutMissingTag	The purpose of this check is to identify Roundabouts with missing junction=roundabout tag. Candidate must be navigable, closed and round shape OSM Way that intersects with at least two navigable roads.
SharpAngleCheck	The purpose of this check is to identify roads with angles that are too sharp. Sharp angles may indicate inaccurate digitization once a certain threshold is exceeded.
ShortSegmentCheck	The purpose of this check is to identify short segments/edges (length is less than a configured minimum length) that have a node with less than or equal to a configured node valence connections.
SignPostCheck	The purpose of this check is to identify On-/Off-Ramps in motorways and trunk highways that are not relaying information from their respective sign posts.
SingleSegmentMotorwayCheck	The purpose of this check is to identify ways tagged with highway=motorway that are not connected to any ways tagged the same.
SinkIslandCheck	The purpose of this check is to identify whether a network of car-navigable Edges can be exited.
SnakeRoadCheck	The purpose of the SnakeRoad check is to identify roads that should be split into two or more roads.
SuddenHighwayTypeChangeCheck	The purpose of this check is to identify roads that jump to much different highway classifications.
UnwalkableWaysCheck	The purpose of this check is to identify any non-motorway single carriageway edges with no foot tags that cross any high-priority roads that are dual carriageways.
ValenceOneImportantRoadCheck	This check identifies important roads that either start or end with valance-1 nodes.

Nodes

Check Name	Check Description
BigNodeBadDataCheck	The purpose of this check is to flag any BigNodes that have may have some bad data.
ConnectivityCheck	This check identifies nodes that should be connected to nearby nodes or edges.
DuplicateNodeCheck	The purpose of this check is to identify Nodes that are in the exact same location.
InvalidMiniRoundaboutCheck	The purpose of this check is to identify invalid mini-roundabouts (i.e. roundabouts that share the same rules as other roundabouts, but present as painted circles rather than physical circles).
LevelCrossingOnRailwayCheck	This check identifies incorrectly tagged or missing nodes at railway/highway intersections.
NodeValenceCheck	This check identifies nodes with too many connections.
OrphanNodeCheck	The purpose of this check is to identify untagged and unconnected Nodes in OSM.

Points

Check Name	Check Description
AddressPointMatch	The purpose of this check is to identify improperly tagged street names (addr:street) on features that already have an addr:housenumber tag. This includes cases where the addr:street tag doesn't exist or is null.
AddressStreetNameCheck	The purpose of this check is to identify nodes with addr:street names that don't match the surrounding roads.
DuplicatePointCheck	The purpose of this check is to identify Points in OSM that are in the same location.

Relations

Check Name	Check Description
InvalidMultiPolygonRelationCheck	This check is designed to scan through MultiPolygon relations and flag them for invalid geometry.
InvalidTurnRestrictionCheck	The purpose of this check is to identify invalid turn restrictions in OSM. Invalid turn restrictions occur in a variety of ways from invalid members, Edge geometry issues, not being routable, or wrong topology.
MissingRelationType	The purpose of this check is to identify Relations without relation type.
InvalidSignBoardRelationCheck	Identifies signboard relations that do not meet all the requirements for a signboard relation.
OneMemberRelationCheck	The purpose of this check is to identify Relations in OSM which only have one Member.
OpenBoundaryCheck	This check attempts to check for Admin Boundary Relations that should be closed polygons but are not closed.

Tags

Check Name	Check Description
AbbreviatedNameCheck	The purpose of this check is to flag names that have abbreviations in them.
BridgeDetailedInfoCheck	The purpose of this check is to identify prominent bridges with unspecified type or structure.
ConflictingAreaTagCombination	The purpose of this check is to identify Areas with invalid tag combinations.
ConflictingTagCombinationCheck	This check verifies whether an atlas object has a conflicting tag combination or not.
ConstructionCheck	The purpose of this check is to identify construction tags where the construction hasn't been checked on recently, or the expected finish date has been passed.
HighwayToFerryTagCheck	The purpose of this check is to identify all Edges with route=FERRY and highway=PATH (or higher).
ImproperAndUnknownRoadNameCheck	This check flags improper road name values.
InvalidAccessTagCheck	The purpose of this check is to identify invalid access tags.
InvalidLanesTagCheck	The purpose of this check is to identify highways in OSM with an invalid lanes tag value.
InvalidTagsCheck	This flags features based on configurable filters. Each filter passed contains the atlas entity classes to check and a taggable filter to test objects against. If a feature is of one of the given classes and passes the associated TaggableFilter, it is flagged.
MixedCaseNameCheck	The purpose of this check is to identify names that contain invalid mixed cases so that they can be edited to be the standard format.
RoadNameGapCheck	The purpose of this check is to identify edge connected between two edges whose name tag is same. Flag the edge if the edge has a name tag different to name tag of edges connected to it or if there is no name tag itself.
RoadNameSpellingConsistencyCheck	The purpose of this check is to identify road segments that have a name Tag with a different spelling from that of other segments of the same road. This check is primarily meant to catch small errors in spelling, such as a missing letter, letter accent mixups, or capitalization errors.
SimilarTagValueCheck	The purpose of this check is to identify tags whose values are either duplicates or similar enough to warrant someone to look at them.
ShortNameCheck	The short name check will validate that any and all names contain at least 2 letters in the name.
StreetNameIntegersOnlyCheck	The purpose of this check is to identify streets whose names contain integers only.
TollValidationCheck	The purpose of this check is to identify ways that need to have their toll tags investigated/added/removed.
TunnelBridgeHeightLimitCheck	The purpose of this check is to identify roads with limited vertical clearance which do not have a maxheight tag.
UnknownHighwayTagCheck	This check attempts to flag all highway tags that are unknown to the osm wiki page.
UnusualLayerTagsCheck	The purpose of this check is to identify layer tag values when accompanied by invalid tunnel and bridge tags.
ConditionalRestrictionCheck	The purpose of this check is to identify elements that have a :conditional tag that does not respect the established format.
SourceMaxspeedCheck	The purpose of this check is to identify elements that have a source:maxspeed tag that does not follow the tagging rules.

Ways

Check Name	Check Description
ApproximateWayCheck	The purpose of this check is to identify ways that are crudely drawn, there is a discrepancy between the drawing and the real way, especially for curves.
BuildingRoadIntersectionCheck	The purpose of this check is to identify buildings that intersect/overlap roads.
DuplicateLocationInPolyLineCheck	Identifies OSM ways with repeating locations.
DuplicateWaysCheck (Deprecated)	The purpose of this check is to identify Ways that have either had their entire length or a segment of their length duplicated or drawn multiple times. This check has been deprecated and is no longer active.
GeneralizedCoastlineCheck	The purpose of this check is to identify coastlines whose nodes are too far apart, have angles that are too sharp, and/or have source=PGS Tag values.
IntersectingBuildingsCheck	The purpose of this check is to identify buildings that intersect other buildings.
InvalidGeometryCheck	This check flags invalid polyline and polygon geometries.
LineCrossingBuildingCheck	The purpose of this check is to identify line items (edges or lines) that are crossing buildings invalidly.
LineCrossingWaterBodyCheck	The purpose of this check is to identify line items (edges or lines) and optionally buildings, that cross water bodies invalidly.
MalformedPolyLineCheck	This check identifies lines that have only one point, or none, and the ones that are too long.
SelfIntersectingPolylineCheck	The purpose of this check is to identify all edges/lines/areas in Atlas that have self-intersecting polylines, or geometries that intersects itself in some form.
WaterWayCheck	This check finds closed waterways (circular water motion), waterways without a place for water to go (a "sink"), crossing waterways, and waterways that go uphill (requires elevation data).