To optimize the intersection for car traffic. Or maybe rather to minimize signal wait times.
If pedestrians could take the shortest path, it would roughly double the size of the intersection in both width and height. Which then requires clearing times on each signal pass to be longer. Which ultimately makes everybody wait longer at the intersection, including pedestrians.
So, that is one possible explanation. I guess you didn’t really ask for one, and maybe I should also add that it’s just that; an explanation, not a justification.
To optimize the intersection for car traffic. Or maybe rather to minimize signal wait times.
If pedestrians could take the shortest path, it would roughly double the size of the intersection in both width and height. Which then requires clearing times on each signal pass to be longer. Which ultimately makes everybody wait longer at the intersection, including pedestrians.
So, that is one possible explanation. I guess you didn’t really ask for one, and maybe I should also add that it’s just that; an explanation, not a justification.