LandXML.org
Derived from earlier ASCII-based Engineering and Surveying-Exchange (EAS-E) initiative. Schema is supported by over a dozen commercial applications.
Civil design information, including raw and reduced surveying data, surface data, parcel data, and 3D road model. Includes standard format for official electronic design submission.
Most recent version incorporates mechanisms for interoperability with the Federal Highway Administration (FHWA) Interactive Highway Safety Design Model (IHSDM).
Includes content of AASHTOWare SDMS.
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