Table 1 Description of the different time operationalizations

Dispatched to clear (Cumulative)

Cumulative timespan between unit dispatched and unit cleared across all response units for an incident

Dispatched to clear (standard FILO)

Timespan between first unit dispatched and final unit cleared

Dispatched to clear (FILO*UNITS)

Timespan between first unit arrived and final unit cleared, multiplied by the number of units who have been present on scene