French to English Other

According to another translator, this is an abstract architectural concept relating to space and buildings (which he says "volumes" refers to), but I'm struggling to find a good translation because I still don't understand it. The context: "Parcourir 400 metres en notre trottoir roulant ne prend que 2 minutes... Le resultat est la correspondance immediate au sein d'une meme gare ou entre deux stations proches. Unification de l'espace voyageur. Libre extension des volumes, simplification de lecture des espaces voyageurs, suppression des repture de flux et des points d'engorgement." I'd really appreciate any insight! Karen