Practical guides to roster risk and opportunity.
How to check rest between shifts in an Excel roster
A practical guide to checking time off between shifts in Excel, including overnight work, time zones, missing history and a worked example.
Read the guide → EvidenceWhat roster data can and cannot tell you about fatigue
Understand which working patterns a roster can show, why missing history matters, and why a roster score does not measure sleep or individual fatigue.
Read the guide → DecisionsHow to compare a roster change before accepting it
A practical before-and-after checklist for roster changes: review working patterns, staffing constraints, missing evidence and the decision record.
Read the guide → Commercial reviewSales per labour hour: what it shows and what it cannot prove
Calculate sales per rostered labour hour, compare like-for-like periods, and understand why the ratio alone cannot establish the right staffing level.
Read the guide → ConceptsWhat is a ghost shift?
A shift that looks fine on the roster but leaves little time to sleep. How to spot one.
Read the guide → RegulationThe HSE Fatigue and Risk Index: what happened
What the index measured, why HSE withdrew it in 2021 and what HSE recommends instead.
Read the guide →Questions about your rosters?
Walk through a complete example on a synthetic roster, or tell us how you roster today.