摘要：Tt is not surprising that the urban margin or peri-urban fringe, the zone of most rapid growth and change, is the least weil understood. Data sources are sporadic, often disconnected and by defmition out-of-date. The means and structures of govemance, systems ofinfrastructureprovision and regulatory policies invariably lag behind the pace, scale and diversity ofurban expansion. This is especially the case in large and rapidly growing urban regions such as Toronto. A parallellag is evident in our images of what the region is like, how it is changing, and who if anyone is in charge. The peri-urban
