Ramps could be added at the end of two rows so then it is easier to get down and outside to escape meltdowns and also to allow for new races to be added that involve the second floor. Even the race “Around the World” could be updated to add the second floor into it.
I even made a ‘diagram’ to show how the ramps could be added so they wouldn’t be too steep. They are basically like slip roads on motorways/highways. Also, so it makes sense, Black is for the bridges that are level with the 2nd Floor and Grey is for the ramps.