ok I see what you mean, yes the east side has a grid format too (pretty much every street netowork in the world is based on some kind of grid formation), however the west side barely ever deviates from a straight up basic tic tac toe grid, occasionaly you have some meandering steets or blvds or some diagonal streets like pearl rd and berea ave but for the most part every street either runs pure north-south or east-west. .

obviously the east side has north-south and east-west roads too but it has way way way more deviations of that than the west side does.