Charrette
“A charrette is an intensive planning session where citizens, designers and others collaborate on a vision for development. It provides a forum for ideas and offers the unique advantage of giving immediate feedback to the designers. More importantly, it allows everyone who participates to be a mutual author of the plan.
“The term “charrette” is derived from the French word for “little cart.” In Paris during the 19th century, professors at the Ecole de Beaux Arts circulated with little carts to collect final drawings from their students. Students would jump on the “charrette” to put finishing touches on their presentation minutes before the deadline.”
From www.tndtownpaper.com