38 Pentti Haddington, Lorenza Mondada and Maurice Nevile
atre in which a movie will be watched (Hausendorf 2012) clearly show that
mobile action may materially transform space. The rearrangement of an
urban zone during an exercise by an emergency team, blocking roads, forbid-
ding access to usual places, diverting traffic (Büscher 2007), also produces an
active transformation of space, on a larger scale.
Nevertheless, mobile space-making activities do not always imply a physi-
cal rearrangement of material-architectural-urban surroundings: mobile
activities can produce new ecologies by just disposing and arranging the par-
ticipants’ bodies within space in a specific way. This is for instance the case
when people meet in a public space and form a circle ...