Exegesis Spatial Data Management

exeGesIS undertook an analysis of Greenspace and Public Open Space in Carmarthenshire for 21 major and 51 minor settlements to determine the percentage of the population in each settlement which passed set criteria. The results were reviewed by local authority staff via a website, allowing comments to be left and read by others.

Flintshire County Council recruited exeGesIS to update their digital definitive map. The scenario was that the digital Definitive map hadn’t been updated for several years, while in that time a number of Legal Orders had come into force that changed the network, meaning their digital definitive map was out of date and inaccurate.

exeGesIS analysed Marine Intertidal Phase 1 data for the whole of Wales using the standard CCW Conservation Assessment Protocol and a bespoke database application in Microsoft Access. This application reads and analysis the original survey data to produce reports containing the results, measured against SSSI selection criteria.

exeGesIS has produced habitat inventories for coastal vegetated shingle, saline lagoons, grassland and upland Biodiversity Action Plan (BAP) habitats. These involved collating spatial data, capturing paper-based data, aerial photograph interpretation, ground truthing and processing available data to create standardised national datasets.

Over several years exeGesIS undertook a number of analyses of Greenspace provision, comparing the results against the standards in the CCW Greenspace Toolkit. Analysis was undertaken to determine the distance between each postcode and the nearest access point on the nearest Greenspace.

This project involved the collation and evaluation of a suite of ecological datasets, the production of an indicative map of upland habitats, an investigation of upland field data collection options, and capturing all survey data to GIS.
 

Various datasets relating to the rights of way management in Rhondda Cynnon Taf had fallen out of date, and exeGesIS was asked to assist Rhondda Cynnon Taf County Borough Council with the task of updating and correcting this information, using data from multiple sources to do so.

exeGesIS built comprehensive and consistent greenspace datasets. This dataset was used to assess whether greenspace targets were met. Network analysis techniques were employed to ensure the shortest walking distances from every postcode area, to the nearest greenspace could be identified and measured.

This project involved the survey of several hundred kilometres of walking trails across London, provision of the results in a bespoke asset management system and publishing the results through a map-based, web interface. Using our 'Path Surveyor' application, the survey team captured data on 24,000 features with 15,000 images.

exeGesIS produced an updated map of ancient woodland in Wales . Woodlands were mapped according to forest type determined from aerial photographs. The resulting dataset was more compatible with other rural land-use datasets, such as the agricultural Integrated Administration and Control System.