LR Research Highlights The Need To Rationalize Ship Alarms For Improved Decision-Making

According to research conducted by Lloyd’s Register (LR), the increasing number of alarms onboard ships is affecting the operational decision-making capabilities of officers and watchkeepers. The study, part of LR’s “Alarm Management in the Maritime Industry” report, emphasizes the need to rationalize alarms to prevent distractions and maintain focus during critical operations.

Rising Number of Alarms at Sea

The research revealed a 197% increase in alarms per hour while vessels are at sea, compared to nearly two decades ago. Alarms in coastal and confined waters have also seen significant increases. This surge is attributed to the growing number of digital technologies and sensors installed on ships, many of which include alarm functions.

Impact of Alarm Fatigue on Crews

The study found that excessive alarms can lead to alarm fatigue, affecting the crew’s operational awareness and performance. Peak rates were recorded at 74 alarms per hour on the bridge during situations requiring high concentration, while some ships experienced up to 22,500 machinery alarms per day in the engine room. This overload can hinder rather than help the crew, making it difficult to identify critical issues.

The Need for Alarm System Monitoring

The research underscores the importance of better monitoring and controlling alarm frequency to ensure they are useful during both normal and high-stress operations. Following these findings, LR has created an industry task force to research alarm management approaches and improve the system’s effectiveness within the maritime industry.