“Open Streets,” last year’s event that temporarily shut down Dorchester Avenue to traffic and opened it up to pedestrians, is scheduled to return on Sun., Sept. 17. The shutdown will stretch a little over a mile between Fields Corner and Ashmont.

City Hall officials have shortened the length from last year’s extent, which ran from Dot Ave. at Freeport Street to Gallivan Boulevard with activities petering out around Ashmont Station.

The festival will also return to Centre Street in Jamaica Plain on Sun., June 25, and Sat., July 15, along Blue Hill Avenue near the Dorchester/Roxbury border.

Two more dates and neighborhoods, Allston-Brighton (Sat., Aug. 19, on Harvard and Brighton Avenues) and East Boston (Sun., Oct. 16, on Meridian and Bennington Streets) have been added, too.

The streets will close at 9 a.m., with activities starting at 10 a.m. and lasting until 3:30 p.m.

“You can expect to see, across the board, food trucks, art installations, performances, and fun and games for residents of all ages and generations,” Mayor Wu said at an announcement Tuesday of this week in Allston with Jascha Franklin-Hodge, the chief of streets, and Segun Idowu, chief of economic opportunity, by her side..

Face painting, balloon animals, and crafts are among the programs on tap, with Shana Bryant Consulting returning as the implementing contractor for Open Streets.

A separate but similar event, which shuts down Newbury Street in the Back Bay, starts in July and runs through every Sunday to Oct. 15.
“Open Streets is an exciting opportunity to help residents meet new friends, connect small business owners with new life-long customers, and weave neighborhoods together in a family-friendly celebration for everyone to enjoy,” Idowu said.

In a separate event, Dorchester Avenue will also close for a few hours on Sun., June 4, for the annual Dorchester Day Parade. The parade begins at 1 p.m. from Richmond Street in Lower Mills and ends at Columbia Road. Large sections of the roadway are typically closed from roughly 12:30 p.m. to 3:30 p.m. A road race, which starts and ends at the Blarney Stone in Fields Corner, precedes the parade.

Another event that will close a section of the avenue comes on Sat., July 15. The Boston Little Saigon Cultural District’s Night Market (Cho Dem) will be back again this year after a very successful inaugural event in Fields Corner last summer. Festivities will take place from 4 p.m. to 9 p.m. on blocked-off Dorchester Avenue between Park and Adams streets.