At Planning Boards here in the NorthEast, sidewalks which have been built in the last ten-or-so years all are all required to have a sort of slope, or ramp, every so many feet and at intersections to facilitate wheelchair use. We call 'em berms!

What you all call Coriolis Effect I was introduced to as Coriolis Force! The late, great, Love of My Life explained it to me and since then when all the forces of the world seem aligned against me .... I blame the Coriolus Force (or perhaps now, the Coriolis Effect!) Like when posts go wide for no reason, the board is slow, the dog is driving me crazy, my hair is growing in crooked, my teeth itch, etc., etc.