We often think of plazas as rectangular spaces, but unique geometries can create unexpected delight when a few simple criteria are met.
"Last year, I enjoyed thinking of the critical components of a successful plaza: activity, locals, and a third place. Great plazas are hosts to community engagement any time of the day or evening, they attract both locals and tourists, and always have a third place fronting at least one edge of the outdoor room. A recent trip to France provided a study of the unusual triangular plaza, or place. These triangular French spaces reminded me of a very special New Mexican plaza of my home state. They all have a civic use anchoring the base of the space, a mixture of uses framing the space, and opportunity for meaningful, flexible community activity in the space itself."
Susan Henderson goes on to discuss triangular plazas in New Mexico, Normandy, and Paris, looking for important tidbits. These days, the word "plaza" is often applied to a space that is nothing more than an extra-wide sidewalk. The three key criteria for a real plaza are to provide a perception of the space as a room, activate the space with meaningful destinations at the edge, and allow the space to be flexible in its use.

FULL STORY: Triangular Plazas: Flexible, outdoor rooms with meaningful uses

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This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
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City of Albany
UCLA Lewis Center for Regional Policy Studies
Mpact (formerly Rail~Volution)
Chaddick Institute at DePaul University
City of Piedmont, CA
Great Falls Development Authority, Inc.
HUDs Office of Policy Development and Research