The Access Network Map of England is a national composite dataset of Access layers, showing analysis of extent of Access provision for each Lower Super Output Area (LSOA), as a percentage or area coverage of access in England. The ‘Access Network Map’ was developed by Natural England to inform its work to improve opportunities for people to enjoy the natural environment.  This map shows, across England, the relative abundance of accessible land in relation to where people live. Due to issues explained below, the map does not, and cannot, provide a definitive statement of where intervention is necessary.  Rather, it should be used to identify areas of interest which require further exploration.   Natural England believes that places where people can enjoy the natural environment should be improved and created where they are most wanted.  Access Network Maps help support this work by providing means to assess the amount of accessible land available in relation to where people live.  They combine all the available good quality data on access provision into a single dataset and relate this to population.  This provides a common foundation for regional and national teams to use when targeting resources to improve public access to greenspace, or projects that rely on this resource. The Access Network Maps are compiled from the datasets available to Natural England which contain robust, nationally consistent data on land and routes that are normally available to the public and are free of charge.  Datasets contained in the aggregated data:•      Agri-environment scheme permissive access (routes and open access)•      CROW access land (including registered common land and Section 16)•      Country Parks•      Cycleways (Sustrans Routes) including Local/Regional/National and Link Routes•      Doorstep Greens•      Local Nature Reserves•      Millennium Greens•      National Nature Reserves (accessible sites only)•      National Trails•      Public Rights of Way•      Forestry Commission ‘Woods for People’ data•      Village Greens – point data only Due to the quantity and complexity of data used, it is not possible to display clearly on a single map the precise boundary of accessible land for all areas.  We therefore selected a unit which would be clearly visible at a variety of scales and calculated the total area (in hectares) of accessible land in each.  The units we selected are ‘Lower Super Output Areas’ (LSOAs), which represent where approximately 1,500 people live based on postcode.  To calculate the total area of accessible land for each we gave the linear routes a notional width of 3 metres so they could be measured in hectares.  We then combined together all the datasets and calculated the total hectares of accessible land in each LSOA. For further information about this data see the following links:Access Network Mapping GuidanceAccess Network Mapping Metadata Full metadata can be viewed on data.gov.uk.