Reminds me of the drain in the floor of a service workshop used by a team servicing renal dialysis machines. Drain was the highest point of the floor.
When we had the patio and drive redone - after the previous people did a "sub standard" job a few years before
I was very happy to see the owner of the company going around with a long spirit level making very sure that the whole area sloped very slightly
TOWARDS the drainage bits
He was very pedantic about it
I said it was nice to see and he said that it was one of his pet hates when he sees puddles where the thing clearly doesn;t slope the right way
If I look outside now then I will see zero puddles!