Brooklyn–Queens Connector

The Brooklyn–Queens Connector, abbreviated the BQX, was a proposed streetcar line in New York City. It is planned to operate on a north–south corridor along the East River between the boroughs of Queens and Brooklyn. A previous plan bearing similarities to the BQX was initially proposed in 1989 as part of a Brooklyn waterfront streetcar line connecting Red Hook with Downtown Brooklyn. A study by the city, published in 2011, found the proposal to be infeasible. A later proposal by the nonprofit Friends of the Brooklyn Queens Connector, made public in January 2016, found backing from Mayor Bill de Blasio. A director for Friends of the Brooklyn Queens Connector was appointed in May 2016, and a list of possible routings was released in November 2016.

There has been criticism of the project, namely that its completion date of mid-2020s may make it obsolete; that it does not have a clear source for funding; and that it is a poor substitute for subway service. As of 2022, the future of the project was uncertain after de Blasio's mayoral term ended.