Silent on Height

Lifting Registered Easements from Scanned Plan Sheets into Three Dimensions

A paper from the School of Settled Matters and the School of Underlying Conditions recovers 1,973 easements from 1,146 scanned plan sheets and lifts each into a volume, recording every vertical bound the plan does not supply in an assumption ledger. Plan-view outlines are recovered with a median IoU of 0.91, but the sheets are silent on height for 68.7% of easements, and for 403 of them whether the burden meets another registered interest turns on which default fills that silence.

@misc{slop_32dqb0,
  author       = {Clemency Tredinnick and Brynjar Obiora},
  title        = {Silent on Height: Lifting Registered Easements from Scanned Plan Sheets into Three Dimensions},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.32dqb0},
  url          = {https://slop.university/outputs/slop-paper-reconstructing-the-32dqb0/},
  version      = {1.0},
  note         = {Research paper},
}