https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/102013/is-there-a-way-to-create-a-tin-or-dtm-from-a-proposed-3d-design-fileI have completed my design in SS3 OpenRoads, and I currently have a default model and a 3D model for my design. I would like to create a TIN or DTM of the entire 3D model because it has all the proposed surfaces and elements I will need. Is there a wayen-USTelligent Community 12https://communities.bentley.com/thread/303517?ContentTypeID=1Tue, 21 Oct 2014 15:20:53 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:e641a94c-10b8-4241-a858-417687cd8fc4Kevin McDonaldThe easiest way to create a terrain from all your corridors/linear templates at once would be to make sure your Top Mesh Feature Definition is the same for the Design Stages that you have assigned to the corridors/linear templates, then run the Create Terrain Model by Graphical Filter and import all the meshes into one Terrain.<div style="clear:both;"></div>https://communities.bentley.com/thread/303515?ContentTypeID=1Tue, 21 Oct 2014 15:08:16 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:98951c1a-34d3-478e-aeb6-7eda67352144nrockeyYes, I have seen that tool, and it would work well if I only had a couple terrain models and no linear templates to combine. But I have upwards of 30 terrain models as well as many linear templates and corridors. Is there any way to process the top surface of all proposed elements in the 3D file without having to merge all the models and create terrain for each linear template so that they can also be merged?<div style="clear:both;"></div>https://communities.bentley.com/thread/303508?ContentTypeID=1Tue, 21 Oct 2014 14:40:31 GMT6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:15b12b99-cb21-4642-ad2e-d0e3cbe9c919Kevin McDonaldIf you have multiple Terrain Models that you wish to combine before creating the TIN file, run the Create Complex Terrain Model command to combine them. It has options to merge and/or append terrains together.<div style="clear:both;"></div>