How do you involve people in a community engagement process when there is no defined community? Leslie Koch, president of GIPEC, tells us how she did it on Governors Island.

Juliette Spertus discusses her exhibit - which combines infrastructure, New York history and alternative urban futures - about Roosevelt Island's trash collection system.

As cities demand more efficient transit systems, Steven Dale argues for thinking off the road and outside the subway, and thinks that Cable-Propelled Transit could be our answer.