New research from Lloyd’s Register reveals shipboard alarm systems are overwhelming crews with tens of thousands of daily alerts, many offering little operational value. Analysis of 40 million events shows widespread alarm fatigue, disrupting rest and eroding trust in critical safety systems. The findings highlight a growing, systemic risk in maritime operations.

The study applied industrial standards like IEC 62682 to maritime operations for the first time at this scale. Fewer than half of the 11 vessels studied met the benchmark of under 30 alarms per hour. On some ships, alarms disrupted 63% of rest periods, with peak rates reaching 4,691 alerts in ten minutes, forcing crews into risky workarounds.

A pilot project on a cruise ship demonstrated a practical fix: reducing total alarms by nearly 50% over six months using traditional engineering interventions like sensor replacement and system tuning. LR’s Duncan Duffy argues the industry must commit to objective performance measurement and human-centered design to prevent alarm fatigue from causing serious incidents.