Property Subsidence Assessment dataset
The property subsidence assessment dataset provides an understanding of the shrink-swell hazard at both the individual property and/or postcode level for England and Wales. It builds upon the BGS GeoSure shrink-swell data by mapping the hazard to the individual building polygon and considering the other susceptibility factors of building type, foundation depth, and drainage and tree proximity. The data consist of GIS building polygons with an overall susceptibility to subsidence score between 1-100. Scores are also classified from non-plastic to very high. Each building polygon is also scored from 1-10 for each subsidence factor (geology, foundation, drainage, building type, building storey and tree proximity). Postcode data is also available as a table showing the ‘average’ PSA score for all buildings within the postcode. The identification of shrink-swell related subsidence prone areas, alongside the inclusion of potential sources to exacerbate these phenomena, can better inform insurers and homeowners and form the basis to make decisions concerning prevention and remediation. The product enhances geological information obtained from GIP (BGS GeoSure Insurance Product) and GeoSure via the inclusion of the crucial shrink-swell susceptibility factors (proximity to trees and foundation depth). This therefore allows the derivation of a risk element for the housing stock at Building level, which is then generalised to Postcode level. BGS GeoSure - a series of GIS digital maps identifying areas of potential natural ground movement hazard in Great Britain
Simple
- Date (Creation)
- 2021-01
- Citation identifier
- http://data.bgs.ac.uk/id/dataHolding/13607701
- Point of contact
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Organisation name Individual name Electronic mail address Role British Geological Survey
Enquiries
Distributor British Geological Survey
Enquiries
Originator British Geological Survey
Enquiries
not available
Distributor British Geological Survey
Enquiries
not available
Point of contact
- Maintenance and update frequency
- As needed
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GEMET - INSPIRE themes, version 1.0
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BGS Thesaurus of Geosciences
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Shrink-swell clays
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Subsidence
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UK Location (INSPIRE)
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Foundations
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Property damage
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- dataCentre
- Keywords
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NERC_DDC
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- Access constraints
- Other restrictions
- Other constraints
- license
- Use constraints
- Other restrictions
- Other constraints
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The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
- Other constraints
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The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section ( iprdigital@bgs.ac.uk) if further advice is required with regard to permitted usage.
- Spatial representation type
- Vector
- Language
- English
- Topic category
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- Geoscientific information
- Geographic identifier
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EAW
ISO 3166_2 2009 revision
- Geographic identifier
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ENGLAND & WALES [id=149000]
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation
- Begin date
- 2011
- End date
- 2020
- Unique resource identifier
- OSGB 1936 / British National Grid (EPSG::27700)
- Distribution format
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Name Version Other formats could be supplied on request
ESRI ArcGIS
- Distributor contact
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Organisation name Individual name Electronic mail address Role British Geological Survey
Enquiries
Distributor
- Distributor contact
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Organisation name Individual name Electronic mail address Role British Geological Survey
Enquiries
not available
Distributor
- OnLine resource
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Protocol Linkage Name https://www.bgs.ac.uk British Geological Survey Homepage
- Hierarchy level
- Dataset
- Other
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dataset
Conformance result
- Title
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INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
- Date (Publication)
- 2011
- Explanation
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See the referenced specification
- Pass
- No
Conformance result
- Title
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Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Explanation
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See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Pass
- No
- Statement
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Input data: OS OpenMap Local building polygons GeoSure shrink-swell National Tree Map (Bluesky) Office for National Statistics (UK property build period) Office for National Statistics (UK property type) OS Code Point open Process: GeoSure and the other input datasets are mapped to the OS Open building polygons. Each building is then scored for each input factor. Input factors are then combined via a weighted algorithm to derive the PSA score for each building, this score is then classified into the PSA classes. Building polygon scores are aggregated to produce the postcode score. Processing was carried out using python scripts in ARCGIS
Metadata
- File identifier
- b9deb0cc-588c-0081-e054-002128a47908 XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2024-10-11
- Metadata standard name
- UK GEMINI
- Metadata standard version
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2.3
- Metadata author
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Organisation name Individual name Electronic mail address Role British Geological Survey
Point of contact
- Dataset URI