An evacuation is the one moment where your attendance data has to be right immediately, on a phone, outside the building. Most workplaces find out during the drill that it is not. The failure is rarely the alarm or the marshals. It is the list.
What a roll call actually requires
A roll call answers one question at the muster point: is anyone still inside. To answer it you need to know who was in the building, which is not the same as who booked a desk.
Booking tells you intent. Attendance tells you reality. A roll call needs the second, which means a sign-in signal of some kind rather than the booking alone.
The four groups people forget
| Group | Why they are missed | What fixes it |
|---|
| Contractors | Held in a separate book, or none | Same live list as staff, grouped by company |
| Visitors whose host has left | Nobody owns them once the host goes | Automatic sign-out and an unattended-visitor flag |
| Lone workers | Plant rooms and restricted areas | Flag at sign-in, alert on overdue sign-out |
| People with a PEEP | Assistance not assigned in advance | Named assistant recorded against the person |
Contractors, who are often in a separate book or no book at all. Visitors whose host has already left the building. Lone workers in plant rooms and restricted areas. And anyone with a personal emergency evacuation plan, along with whoever is assigned to assist them.
Why the list is usually wrong
No sign-out, so people who left hours ago still appear inside. An export taken that morning rather than a live list. The list only reachable on a desktop inside the building you have just evacuated. And people accounted for from memory at the muster point rather than marked off as you go.
Keep it live rather than exported. Make it reachable from a phone. Group people by area or floor so you can direct a search rather than sending someone into the whole building. Separate staff, contractors and visitors, because the follow-up differs for each. Allow someone to be marked accounted for from a second muster point, since larger sites have more than one.
The drill is the audit
Record how long the roll call took and where the delay was. Note anyone unaccounted for and why the list was wrong. Check specifically whether contractors appeared. Then repeat it on a day when the usual fire marshal is not there, because that is the version you are actually planning for.
Drill frequency is set by your fire risk assessment and local regulations rather than by software, so confirm what applies to your building and sector.
Our evacuation and roll call readiness checklist walks through the whole sequence.
References
General information, not legal advice. Confirm what applies to your jurisdiction, sector and site.