Linework Specifications

Features Identified by Default

  • Topographic Features

    • Hardscape Elevation Points

    • Vegetated Elevation Points

    • Breaklines

    • Curblines

    • Storm Drains

    • Edge of Road

    • Crown of Road

    • Edge of Concrete, Dirt, Gravel, Etc.

    • Water Features

  • Planimetric Features

    • Boundaries

    • Road Annotations

    • Building Driplines

    • Walls & Fences

    • Paint Striping

    • Utilities (Power Poles, Lamp Posts, Fire Hydrants)

    • Utility Access Panels (Manholes, irrigation panels)

    • Signage

    • Misc.

Features Not Marked by Default

  • Individual plants & trees

  • Vehicles, trailers, & movable objects

  • Tops of buildings / Rooflines

  • Anything underneath dense vegetation, eaves, overpasses, etc.

  • Anything that can’t be seen from the air

 

Technical Specifications

  • 2D vs 3D Points

    • All points are stored as COGO points in Civil3D.

    • Any points included in “Topographic” layers will be marked in 3D, and any points included in “Planimetric” layers will be marked in 2D.

    • Symbols are added for manholes, fire hydrants, power poles, and light poles to improve visibility beyond a single point. Symbols are used in every dataset unless requested.

    • Elevation points and symbols are annotated with their elevation.

  • 2D vs 3D Polylines

    • Any polylines included in “Topographic” layers will be marked in 3D, and any polylines included in “Planimetric” layers will be marked in 2D.

    • Areas with no data, uncertain data, and heavy vegetation will be marked with 2D polylines.

  • TIN Surface

    • A TIN surface is created using all of the topographic data on a project, and does NOT include any of the data in the “Planimetric” layers.

    • Contours are displayed both as a layer with individual polylines, as well as a visible portion of the created TIN surface.

  • Contours

    • 1’ contours are provided standard on all projects, with 5’ contours as the major contour interval. By default, we do not apply any smoothing algorithms to the contours, and the exact contour associated with the manually drafted TIN surface are used. Contour lines are annotated with the elevation of the contour itself.

    • Contour lines are provided in 3D with vertical values associated with them.