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    By David Crowther

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    Following on from the White Paper (below) which discusses how to add your own Terrain Data to your InfraWorks Model:

    https://www.cadlinecommunity.co.uk/hc/en-us/articles/115002006145-Using-Open-Source-1M-Lidar-Terrain-Data-within-InfraWorks

    At the start of 2019, the LIDAR datasets discussed in the White Paper above are now available directly from the DEFRA  website:

    https://environment.data.gov.uk/

    To access these datasets, from the Search page, type LIDAR and press Search:

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    The Search Results provide access to both DSM (Surface) and DTM (Terrain) datasets at different Resolutions e.g. 1m, 2m, 25cm.

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    Having chosen either DSM or DTM and the required resolution the webpage updates and provides dataset links:

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    Choose the Download link and a Map of the UK will open. Zoom into your location in the map and use the Draw Polygon tool to define your area of interest.

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    Once you have drawn around your area of interest press the download ARROW to get the available tiles.

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    In the  download panel, choose the Product e.g. LIDAR Composite or Tiles, the Year of Publication and the Resolution e.g. 1m or 2m.

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    The files will be downloaded and saved to your computer where you can then unzip them to find the ASCII Terrain files.

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    Now within InfraWorks you can add the LIDAR terrain data using the Data Sources Panel > Add Raster.

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    After selecting and adding all the individual tiles, from the Data Panel choose to configure the Lidar Terrain layers. In the Configuration page choose the Coordinate System to be GB_ORD1-MOD and clip the data to the Models extent.

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    Once configured you will now have 1M accurate LIDAR terrain data as the Models surface.

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