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CorridorRoad Wiki

CorridorRoad is a FreeCAD workbench for road corridor design. This wiki is the practical guide for daily use and development.

Start Here

• Quick Start
• Workflow
• CSV Format
• Troubleshooting
• Developer Guide

What You Can Do

• Build alignment/stations/profiles/sections/corridor in one pipeline.
• Import terrain from point cloud CSV using DEM-style grid sampling.
• Run design terrain and cut/fill analysis.

Recommended First Test Data

• tests/samples/pointcloud_utm_realistic_hilly.csv
• tests/samples/alignment_utm_realistic_hilly.csv

How To Use This Wiki

1. Start from Quick Start for first successful run.
2. Use Workflow when doing full production sequence.
3. Use CSV Format before importing external survey/alignment data.
4. Open Troubleshooting when EG/daylight/output issues appear.
5. Use Developer Guide for code-level changes.

Questions And Support

• If users or developers have questions about CorridorRoad, please ask in the project thread on the FreeCAD Forum:
• https://forum.freecad.org/viewtopic.php?t=103783
• Use the forum thread for usage questions, bug discussion, and development feedback.

Core Pipeline

Terrain (EG) -> Alignment -> Stations -> Profiles/PVI -> 3D Centerline -> Sections -> Corridor Loft -> Design Terrain -> Cut/Fill

Screenshot Insertion Guide

1. Add image files under wiki repo path: images/.
2. Use relative markdown links: ![alt](images/<file>.png).
3. Keep width around 1600-2200 px for readability on wiki pages.

Required Environment

• FreeCAD 1.0.2 or newer (recommended)
• Windows 11 (current validation environment)

Notes

• Daylight terrain source in section workflow is mesh based.
• Runtime terrain/cut-fill sampling follows DEM-style regular XY grid.
• For coordinate-sensitive workflows, confirm Local/World mode before generation commands.

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Last verified with commit: <fill-after-release>