The four firms — Santiago Calatrava, Diller Scofidio + Renfro, SHoP Architects and SOM — will have until May 29 to propose new designs that will be unveiled to the public that day at the TimesCenter on West 41st Street. “We’re really trying to unlock people’s imaginations about the very real potential of a new arena and of a new Penn Station,” said Vin Cipolla, the society’s president, in an interview. — artsbeat.blogs.nytimes.com

In an effort to foster the creative debate on urban recovery after Hurricane Sandy, MoMA PS1 and MoMA’s Department of Architecture and Design are calling out for ideas to create a sustainable waterfront.

Artists, architects, designers, and others are welcome to present ideas for alternative housing models, creation of social spaces, urban interventions, new uses of public space, the rebuilding of the boardwalk, protection of the shoreline, and actions to engage local communities. — momaps1.org

“GOOD Ideas for Cities is a project that emerged from events where we have paired designers with urban leaders to see what new kinds of thinking and solutions may emerge,” says Caplowe. “Even if ideas are far-fetched, they always lead to provocative conversations about the places we live and how we might improve them, rather than just accepting the status quo.” — nowness.com

From April 11-30, we're gathering up your ideas: from improving local parks and streets all the way up to rethinking whole systems, like transit and trash disposal. You can explore, discuss, and debate everyone's ideas right here. — urbandesignweek.org