![]() Create your own AASHTO vehicle blocks using Turn.lsp's built-in BuildVehicle function or download one of the provided AASHTO Imperial Unit Block Libraries for AutoCAD below.ĪASHTO Imperial Unit Block Libraries for AutoCAD Ī Turn.lsp contributor has provided two Imperial Unit AASHTO vehicle block libraries reflecting both the 20 editions of AASHTO's "Green Book". Using Turn.lsp to create and model AASHTO vehicles and their turn radius paths requires the input of vehicle dimensions and turning radii as listed in AASHTO's "A Policy On Geometric Design Of Highways And Streets", also known as the "Green Book". Submit comments, questions, and bug reports at the Discussion page for this article. Load the file by dragging it into a drawing or by using the "appload" command, then type Turn.Īlso see the videos Automate Turn.lsp for Quick Turning Paths (annotated) and How to Test TURN.LSP posted on YouTube. Or download (possibly not the latest version) from. ![]() 2.1 AASHTO Imperial Unit Block Libraries for AutoCADĬopy the Source code section below into a file (turn.lsp) using Notepad.
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