The article measures the intensity of interaction between activities within
suburban mixed-use centers (also referred to as suburban downtowns or edge
cities), and the reliance on walking for intra-center journeys. It examine
s whether or not these centers are achieving, as intended in planning docum
ents, an inner dynamic that distinguishes them from typical suburban commer
cial developments. A survey of office workers within the Greater Toronto Ar
ea's three most developed suburban mixed-use centers reveals a moderate lev
el of inner synergy (interaction between activities beneficial to all those
involved) and of walking for intra-center journeys. The article highlights
the advantages of such an inner dynamic for activities located within subu
rban mixed-use centers. Ir also points at the surveyed centers' car orienta
tion and the inhospitality of their walking environment to explain why syne
rgy and pedestrian movements are not arty higher. This leads to an examinat
ion of the advantages that would accrue from a more intense pedestrian-base
d synergy and of the means of achieving such an outcome.