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Ruth Conroy Dalton
College of Computing and Architecture, Georgia Tech
Isovists: what they are and why architects are interested in them
An isovist is a 2D representation of the field of view available from
a single point in space (essentially a 2D polygonal slice through
space, generated at eye-height and parallel to the ground plane).
Architects have been interested in isovists, both as ways of
representing the visual field, but also of analyzing certain
characteristics of the changing visual field that seem to be
important to behavioral patterns of people moving through the
environment. This lecture will be a brief presentation of how the
concept of the isovist can be related to other analogous research and
concepts. The lecture will finish by talking about recent work
comparing differing geometric and topological characteristics of the
isovist with observed movement patterns and finally showing how this
is being used to drive agent-based models of pedestrian movement
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