In 2011, New York City has introduced a large-scale, city-wide participatory budgeting scheme. Here, residents have the opportunity to input their own spending ideas onto an interactive map. Projects in the past have included improvements to schools, parks, libraries, public housing, and other public or community spaces. In a second stage of the process, community volunteers, also called Budget Delegates, expand the proposed ideas into concrete proposals. After rounds of Project Expos, the proposals are up for a community-wide vote, which decides the proposals that will receive the funding. Up to $1 million from each participating council district is allocated in this way.