By the City / For the City is a public ideas competition that will lead up to Urban Design Week. From April 11-30, New Yorkers can submit their ideas for designing a better New York at this site. From May 16-June 17, designers will choose sites and situations around the city to address, and their proposals will be published in an Atlas of Possibility for the Future of New York, which will be the subject of a major exhibition during September’s festival.