Placement of ramp and wall in the field

RoboCupJunior Rescue RoboCupJunior Rescue Maze
#1

Hello,
I have two questions.

  1. Is it possible for the wall to be located exactly below or above the ramps?

  2. Considering that it is not mentioned in the rules, is it possible 2 or more than 2 ramps to be exactly next to each other?