Separate buildings have separate rhythms
A gatehouse is occupied continuously while the site operates and empties only when the gate closes. A weighbridge hut is used in bursts around vehicle movements. An amenities block fills at breaks. The administration office empties at the end of the day. Those are four different patterns, and a single visit at one time will suit at most one of them.
Placing each attendance against its own quiet point produces a noticeably better outcome for the same hours. The gatehouse is serviced after the gate closes, the amenities after the final break sitting, the crib room after the meal peak and the office once the administration team leaves. Each visit is short and each lands where it achieves the most.
