Another observation was the perception of people has to use points to entry buildings, they are obligued and forced to use the main point, the main gate, if the user don't use the top floor when they arrive by helicopter, but it just happen in exceptional occasions.

I started doing some models that represented some random interventions to build bridges in different places, for example in channels, as show this sequence of photos, or using some funfair playful systems as the roller coaster, or the hammer.