Shift Analysis

Day vs Night shift incident analysis and pattern detection

Day Shift Incidents

89

61% of total

Night Shift Incidents

58

39% of total

Higher Risk Shift

Day Shift

By total volume

Critical Events Ratio

Night 2.3x

Higher critical rate

Shift Distribution

Severity by Shift

Incidents by Hour of Day

Day Shift (06:00–18:00) Night Shift (18:00–06:00)

Category Breakdown by Shift

CategoryDayNightDay %Night %Distribution
Vehicle Interaction151354%46%
Working at Heights16673%27%
Dropped Objects12763%37%
Electrical (LOTO)6940%60%
Chemical Exposure9564%36%
Confined Space5645%55%
Fatigue-Related2625%75%
Manual Handling5271%29%
Ground Conditions7370%30%

Key Findings

Night shift has 2.3x more critical severity incidents

Despite 39% fewer total incidents, night shift accounts for 67% of all critical events. This suggests higher-consequence incidents occur with less supervision.

Fatigue-related incidents are 3x more likely on night shift

75% of all fatigue-related incidents occur on night shift, with peak occurrence between 2:00-4:00 AM and again during the 6:00-7:00 AM handover period.

Electrical/LOTO incidents are 50% more common on night shift

Likely related to reduced supervision and verification during night maintenance activities. 60% of all electrical incidents occur during night shift.

Working at heights 2.7x more common on day shift

Corresponds to scheduled maintenance activities being predominantly performed during day shift. Fall protection compliance is 88% on day vs 76% on night shift.

Shift Handover Risk Periods

The 6:00–7:00 AM and 6:00–7:00 PM handover periods represent the highest risk windows, accounting for 18% of all incidents despite representing only 8% of operational hours.

Morning Handover (06:00–07:00)

13 incidents in 90 days — Primary risk: communication gaps between outgoing night crew and incoming day crew

Evening Handover (18:00–19:00)

9 incidents in 90 days — Primary risk: fatigue from day shift combined with reduced lighting conditions