Grouping restricted work into one period
If five rooms require release or accompaniment and they are visited at intervals across a two-hour attendance, the person providing that access is effectively committed for the whole visit. Grouping those rooms into a single defined period reduces the demand substantially and makes the arrangement something the site can sustain over years rather than something it gradually comes to resist and then quietly withdraw.
That grouping usually means sequencing by access category rather than by geography, which can look inefficient when drawn on a floor plan while being far more efficient in practice. The schedule should state the grouped period explicitly, including its length, so the site knows when access is needed and can arrange it as part of the routine rather than being asked afresh each night.
