Grouping escorted work into one period
Scattering escorted areas through an attendance is the most common and most expensive mistake. If four rooms require an escort and they are visited at intervals across two hours, the escort is effectively occupied for the whole visit. Grouping those four rooms into a single twenty-minute accompanied period reduces the demand substantially and makes the arrangement far more likely to be honoured.
That grouping has to be designed rather than assumed. It usually means the sequence is set by access category rather than by geography, which can look inefficient on a floor plan while being much more efficient in practice. The schedule should state the accompanied period explicitly so the site knows when the escort is needed and for how long.
