I'm working with rail centerline polylines that are dissolved by a route/ownership field (SUB_MLN_LMP). I need to generate ROW (right-of-way) buffer polygons such that:
- Buffers do not overlap across different SUB_MLN_LMP values
- Intersections at switches and diamonds are handled correctly (ownership is respected rather than evenly split)
- Each resulting polygon belongs to only one route/owner
Standard approaches (buffer + dissolve, union, Voronoi/Thiessen from vertices or densified points) either produce overlapping buffers or split ownership evenly at intersections, which does not match the operational use case.
Conceptually, the desired output assigns ownership through intersections based on dominance/priority of routes rather than pure distance geometry (see attached images: black/blue lines correspond to red/green polygons).
Has anyone solved a similar rule-based ROW buffer ownership problem in ArcGIS Pro?
Looking for workflow ideas, tools, or modeling approaches (Spatial Analyst available)
Happy to calrify assumptions around switches, diamonds, or ownership rules if needed.
