This paper investigates conceptual modeling of circulation in settlements using agent-based systems. It explains and compares two different types of model that highlight diametrically opposed architectural tasks in respect to movement. While the first model explores the case where the agents’ movement defines the circulation, the latter builds towards the argument that good circulation can be achieved via self-organization within the agent colony. The first type of computational model generates networks that are directly informed by the acts of movement and circulation is a direct result of agents interacting with their environment. Circulation in the second model is seen as an integral part of the morphogenesis of the settlement geometry. The two models help drawing the distinction between two different notions of agency in design. On one hand agency is seen as a group of actors that organizes and modifies the design solutions or its representations. On the other hand, the configuration and structure of agency becomes a design solution per se.
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