Can a Flip-Flag Sensor Tell a Rural Bus When to Stop?

Architecture and first season of a magnetic hail kit on 87 request-stop flags

A research poster from the School of Continuous Improvement reports the build and first field season of a magnetic hail kit that volunteer coordinators fitted to 87 rural request-stop flags, so an approaching bus now takes its stop warrant from a cab light rather than from the wooden flag itself. The kit delivered a cab-light warrant on 94.1 per cent of flag-up events before the bus reached the stop (median 11.4 s, n = 6,680), and the depot's published missed-stop register now reads from the packet log.

@misc{slop_z4ados,
  author       = {Bram Ntuli and Marit Osayande and Solveig Adeyemi},
  title        = {Can a Flip-Flag Sensor Tell a Rural Bus When to Stop?: Architecture and first season of a magnetic hail kit on 87 request-stop flags},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.z4ados},
  url          = {https://slop.university/outputs/slop-poster-volunteer-coordinators-fitted-z4ados/},
  version      = {1.0},
  note         = {Research poster},
}