Adding another school to the dataset, Christ Church CofE primary School Clifton. This entrance, on Royal Park, actually has a SCHOOL-KEEP-CLEAR stretch that is actually clear here at 08:45 on a Friday morning. The residents have parked considerately and left this part of the pavement clear
This provides about 20 metres of uncluttered pavement where children can cross the road safely
That is important, because either side of this sign, there is no room on the pavement to walk: all children approaching will be on the other side of the road.