Corridor Modeling System, Apparatus, and Method

A method performed by a corridor modeling system implemented with one or more processing circuits for modeling a corridor to be constructed along an existing terrain, the method comprising:

• obtaining at the system an electronic representation of the existing terrain;
• obtaining at the system an electronic representation of a typical cross-section of the corridor;
• obtaining at the system an electronic representation of a 3D baseline of the corridor that aligns the typical cross-section relative to the existing terrain;
• and
• generating at the system a digital surface model of the corridor based on the electronic representations, by extruding the typical cross-section along the 3D baseline and fundamentally modeling continuous surfaces of the corridor resulting from the extrusion as a collection of non-planar parametrically defined surfaces, rather than as a group of discrete facets formed from a triangulated irregular network.