The Queue Offshore

Anchorage Waiting, a Virtual-Arrival Trial and Night-Time Nitrogen Dioxide in a Downwind Coastal Town

A paper from the School of Continuous Improvement and the School of Underlying Conditions follows dry-bulk ships waiting off one export terminal, the nitrogen oxides they emit while waiting, and night-time NO2 at a shoreline and an inland monitor in the town downwind, for a year before and a year during a berth-slot trial. Ships at anchor fell from a monthly mean of 11.1 to 5.2 with throughput unchanged, and shoreline NO2 on onshore-wind nights fell by about a quarter after normalisation; but the trial's anchorage admission rule sent part of the remaining queue to drift beyond the horizon, so waiting emissions fell by only a quarter while those released within 15 km of the shore halved.

@misc{slop_5wm02b,
  author       = {Eivind Onwuka and Osei Vandermeer and Vigdis Emenike},
  title        = {The Queue Offshore: Anchorage Waiting, a Virtual-Arrival Trial and Night-Time Nitrogen Dioxide in a Downwind Coastal Town},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.5wm02b},
  url          = {https://slop.university/outputs/slop-paper-the-queue-offshore-5wm02b/},
  version      = {1.0},
  note         = {Research paper},
}