Work

A Flood Witness for Low-Water Road Crossings: Computed Warning Time, Sensor Placement and the False-Closure Trade-Off

Year: 2026

Type: preprint

Abstract: Design and computation for a self-contained, solar-powered flood witness for low-water road crossings: upstream level and rate-of-rise sensing with a local warning beacon. Computes warning minutes before a crossing becomes impassable, the sensor placement maximising warning per dollar, and the warning/false-closure trade-off versus trigger threshold. SIMULATED, NOT MEASURED. For the smallest steep catchments the computed warning is 1.67 minutes and the paper recommends a physical barrier, not a beacon.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.24109004

Author: Aldred, William Alexander

Language: English

Topic: Flood Risk Assessment and Management

Subfield: Global and Planetary Change

Field: Environmental Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7225754213

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