The problem
Terrain, rivers, roads and grades can disagree.
The choice
Use GIS/elevation evidence; keep unresolved grade separation explicit.
Why this direction
Isolated proof scenes and targeted route checks protect the original geography.
What it changed
More careful work at junctions; incomplete crossings cannot be hidden by invented geometry.
Later revisions
Current surface work stays inside the existing boundary.
This is a concise decision record. It does not invent undocumented alternatives or private reasoning.
Evidence & perspective
- Recovered origins and development history
September 29 corrected history supplied through the shared project archive. Preserves direct user excerpts and separates assistant work reports from player observations. Its opening correction supersedes older missing-origin claims.
- Skunk Universe master and workspace handoff
Read October 4. Latest release entry records Windows CB and the frozen BR/R6 browser demo; older entries remain historical.