poids (1) voyage (1) enquête (1) spectacle (1) transport en commun (1) besoin (1) modélisation (1) aliment (1) exploration (1) environnement (1) éducation (1) âge (1) déplacement journalier domicile-travail (1) enfant (1) abords (agglomération) (1) Education (1) Context (1) Food (1) Travel (1) Children (1) Walking (1) Voyages around the world (1) Voyages and travels (1) Travel (1) Transportation (1) Suburbs (1) Scientific expeditions (1) Recreation centers (1) Reason (1) Probabilities (1)