OSM Defibrillator Mapping Progress in the 'YO' Postal Area

The blue circles on the map are defibrillator locations from The Circuit that haven't been matched to an OSM object. Dark blue circles indicate those recorded as having 24/7 public access, the lighter blue is for those with restricted access. The red, orange and yellow circles are OSM objects that haven't been matched to a defibrillator on an official list. (AEDs that may not be available 24/7 are shown as orange (either indoor=yes or opening_hours!=24/7 or access!=yes|permissive|public|no|private), AEDs not generally available for public use are shown as yellow (access=no|private), and everything else is shown as red). The green lines represent matches from the official data to OSM objects: dark green for a match via the UUID, and light green for matches just based on proximity. For more information see below. Note that there is currently no licence/permission to use the external data directly in OSM, so it can only be used to inform surveys.

The matching works as follows: First we check each location from the Circuit for an OSM emergency=defibrillator object with a ref:GB:the_circuit tag that matches the UUID. Then we check each unmatched Circuit location for the nearest unmatched OSM object with a matching postcode, within 1km of the location. Then we go through all unmatched Circuit locations, and look for any unmatched emergency=defibrillator OSM objects within 50m. If any are found, the nearest is matched. Finally, the previous step is repeated twice more, with increasing maximum distances of 150m and 300m. Note that this matching is not perfect, and if there are multiple nearby AEDs and missing locations in either dataset, then there may be false-positive matches.

• Circuit AEDs recorded as duplicates
• Defibrillators not matched to an OSM Object
• OSM Objects not matched to a defibrillator on an official lists
• Circuit AEDs matched to an OSM object by location
• Circuit AEDs matched to an OSM object by reference
• NDDB AEDs matched to an OSM object by location

Circuit AEDs recorded as duplicates

AEDs are sometimes erroneously registered twice in The Circuit. The duplicate record would appear unmatched in this tool, so there is a mecahnism for manually marking such duplciates. See the Duplicate AEDs page for details. The duplicate AEDs (which are not considered for matching) are listed below.

Found 5 duplicate AEDs.

Defibrillators not matched to an OSM Object

The AEDs listed here are not close enough to an unmatched AED in OSM to be matched. Matches between The Circuit and an OSM object further away can be forced by adding a ref:GB:the_circuit=* tag to the OSM object with the corresponding Circuit UUID. It is not possible to force a match to the NDDB). In case of a single AED being recorded twice in The Circuit, the duplicate can be noted by this tool. See Duplicate AEDs. The entries in fainter type are those that are not public 24/7 units. These are less likely to be able to be mapped in OSM.

Found 657 missing AEDs.

OSM Objects not matched to a defibrillator on an official lists

The OSM objects here are not close enough to an unmatched AED in one of the data sources to be matched. Matches to an AED in the Circuit that is further away can be forced by adding a ref:GB:the_circuit=* tag to the OSM object with the corresponding Circuit UUID. It is not possible to force a match to the NDDB.

Found 114 unmatched objects.

Note: The entries above are based on a larger bounding box, so will also include unmatched OSM objects from neighbouring postal areas.

Circuit AEDs matched to an OSM object by location

To confirm a match as correct, add a ref:GB:the_circuit=* tag to the OSM object with the UUID from The Circuit. To remove an incorrect match, either add the correct UUID (if the AED is listed in The Circuit) or add a not:ref:GB:the_circuit=* tag with a semi-colon separated list of UUIDs not to match.

Found 488 matches.