Parklets have been installed in a number of cities across the country, but have yet to take hold in Boston. Mayor Walsh is hoping to change that, though. On Friday, his office announced the implementation of four parklets in various Boston neighborhoods.

The Boston Transportation Department has built four new parklets – one in Roslindale, Allston, Brighton and Jamaica Plan – and is helping with the design and construction of another in Audubon Circle, courtesy of the Parkolation Project.

“Parklets are a simple and creative way to activate neighborhood centers, encourage community interactions, and create more seasonal outdoor space,” said Mayor Walsh in a statement. “Everyone is welcome in Boston’s parklets, whether it is to socialize with neighbors or to relax in the summer sun.”

Before the parklets were installed, the BTD garnered support from neighborhood-level businesses to act as partners and to perform day to day maintenance fort the miniature, outdoor spaces. Each parklet is essentially the extension of a designated sidewalk area into the street, occupying an area equivalent to one or two street parking spaces.

In addition to the City of Boston, other supporters of this project include parklet partner Mei Mei Restaurant, volunteers from the Harvard Graduate School of Design and Harvard Graduate School of Education, the Boston Foundation, and the Boston Foundation for Architecture.