Big trucks can never make this turn, nor can they retreat from their decision to make this turn without then incurring a smash. So the big trucks stay stuck and cars circumvent the jam by popping up onto the unusually large sidewalk. This dislocation happens weekly. It would be a charming kink in the street grid if the sidewalk cars were not quite so cavalier. Their drivers operate them at street speeds, which can be alarming if you are lost in sidewalk thoughts, not expecting a car to be hurtling directly at you, honking in weird indignation.