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OSM Defibrillator Mapping Progress in the 'AL' Postal Area

Note: There is currently no licence to use the AED location data from the Ambulance Services in Open Street Map. (Even if there was, many are located only by postcode, so the locations are not always precise.) So you must not make any OpenStreetMap edits based on the circles on the map, or the data in the popups or tables below. The data can be used to inform surveys though.

The blue circles on the map are defibrillator locations from the official lists that haven't been matched to an OSM object. The red, orange and yellow circles are OSM objects that haven't been matched to a defibrillator on an official list (orange for AEDs that may not be available 24/7, yellow for AEDs not generally available for public use, and red for everything else). The green lines represent matches from the official data to OSM objects . 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 Ambulence Service location for an OSM amenity=defibrillator object with a matching postcode, with 2km of the postcode centroid. If any are found the nearest such object is matched. Then we go through all unmatched Ambulence Service locations, and look for any unmatched amenity=defibrillator OSM objects within 150m. If any are found, the hearest is matched. Finally, the previous step is repeated, but with an increased distance limit of 500m. Note that this matching is not perfect, and if there are multiple nearby AEDs, or an EAD is a long way from its postcode centriod, they may not be matched correctly.

Defibrillators not matched to an OSM Object

Postcode Location Locality Ref
AL5 2FB Jarvis Homes Ltd
AL2 3RU The Black Boy Public Hous Bricket Wood
AL9 7UW Brookmans Park Church Brookmans Park
AL6 0HW The Village Hall Burnham Green
AL6 0AT The Village Hall Digswell
AL9 6HD The Village Hall Essendon
AL3 8BX The Old Telephone Box Flamstead
AL5 2BA Harpenden Rugby Football Club Harpenden
AL5 2LX Park Hall Community Hall Harpenden
AL5 5SA The Indoor Bowling Club Harpenden
AL5 1PS The Trust Centre Harpenden
AL9 5ER Hatfield Social Club Hatfield
AL10 8NW Oak View Primary and Nursery School Hatfield
AL10 0PW Setting Out Hair Salon Hatfield
AL10 9BZ St. John’s Church Hatfield
AL10 8HR The Jim McDonald Centre Hatfield
AL4 9RG The Community Centre Jersey Farm
AL3 8LF The Fire Station Markyate
AL3 8PS Village/Y2K Hall Markyate
AL4 9TU The Community Centre Marshalwick
AL3 7LR The Parish Centre Redbourn
AL4 9DD The Village Hall Sandridge
AL4 0HR Harvesters Football Club Smallford
AL4 0AY Highfield Surgery St. Albans
AL3 5NP Lodge Surgery St. Albans
AL4 9QL Marshalswick Baptist Free Church St. Albans
AL2 2ND Park Street Pavilion St. Albans
AL2 3NF St Luke’s Church St. Albans
AL2 3HW The Community Centre St. Albans
AL1 5PX The Cornerstone Church St. Albans
AL1 4BH The United Reformed Church St. Albans
AL1 3RD Trinity United Reformed Church St. Albans
AL4 9NT Wheatfields Infants’ and Nursery School St. Albans
AL6 0JX The Memorial Hall Tewin
AL6 0LX The Pavilion Tewin
AL4 8AY The Memorial Hall Weheathampstead
AL9 7NS North Mymms Memorial Hall Welham Green
AL7 2AD Attimore Barn Scout HQ/ preschool Welwyn Garden City
AL6 9LL Barclays Bank Welwyn Garden City
AL7 4FL Creswick Primary School Welwyn Garden City
AL7 4PH Douglas Tilbe House Welwyn Garden City
AL7 2DX Hornsfield Welwyn Garden City
AL7 4RU Howlands Baptist Church Welwyn Garden City
AL7 1JR Isabel Hospice Welwyn Garden City
AL7 4BP King George v Playing Fields Welwyn Garden City
AL7 4ST Malmech and Mannion Welwyn Garden City
AL7 2RT Panshanger Football Club Welwyn Garden City
AL8 6BB Snappy Snaps Welwyn Garden City
AL6 9AT Sports and Social Club Welwyn Garden City
AL7 2HB Springmead School Welwyn Garden City
AL7 2BQ Tesco Express Welwyn Garden City
AL8 6ST The Barn Theatre Welwyn Garden City

OSM Objects not matched to a defibrillator on an official lists

OSM Object Ref Location
n8641874348 On corner of building

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

Defibrillators matched to an OSM object

Ref Postcode Location OSM Object OSM Location MR Offset
AL3 4SW Verulamium Museum n6102995719 62 m
AL2 3PJ St. Stephen Parish Centre n6833594689 41 m

Data derived from OpenStreetMap data, © OpenStreetMap Contributors, licensed under Open Data Commons Open Database License (ODbL). XAPI courtesy of Overpass API.