Main Street from Sweetser Circle to Oakes Street (routes , 105, ), and an all-day lane around Sweetser Circle were added in October 2020. Prospect Street, Somerville: a northbound bus/bike lane (routes , ) opened in 2017. Mount Auburn Street and Belmont Street, Cambridge and Watertown: Three segments totaling , installed in October 2018 for routes and . Massachusetts Avenue, Cambridge and Arlington: of southbound bus lane from Sidney Street to Memorial Drive for route , opened in November 2018. of southbound morning-peak-only bus/bike lane from Varnum Street to Alewife Brook Parkway for route was installed in October 2019 after a successful test a year before. of bus lanes between Dudley Street and Alewife Brook Parkway (route 1) opened in November 2021. Sullivan Square, Boston: Three short sections of bus-only turn lane on Beacham Street (routes , 91, CT2), Maffa Way (, , , ), and Main Street (, , , , ) for buses entering Sullivan Square station, installed as part of a 2018–2019 reconfiguration of the station. Brighton Avenue, Boston: of bus/bike lanes between Commonwealth Avenue () and Union Square, used by routes , , and . The eastbound lane was opened in June 2019, followed by the westbound lane that October. Broadway, Somerville: of bus/bike lanes between Magoun Square and Fellsway West for routes and , opened in August 2019. North Washington Street, Boston: of southbound bus/bike lane (route 92, 93, , , and ) from Causeway Street to Beverly Street opened in August 2019. A northbound bus lane from Sudbury Street to Causeway Street opened in August 2021. Summer Street, Boston: of westbound bus lane between Dorchester Avenue and Atlantic Avenue for routes and , opened in October 2019. Davis Square, Somerville: queue jumps on Holland Street (routes and ) and College Avenue (89, , ) opened in 2020. Broadway, Chelsea: a westbound bus lane from 5th Street to 3rd Street for routes , , , and opened in November 2020. Tobin Memorial Bridge: of westbound bus lane for route 111 (a 12-month pilot) opened in December 2020. Florence Street, Malden: a westbound bus/bike lane opened in December 2020. Washington Street, Somerville: a westbound bus/bike queue jump at McGrath Highway (routes , , ) and queue jumps west of Union Square (route 86) were added in 2020-21. North Common Street, South Common Street, and Market Street, Lynn: of bus/bike lanes for routes / and opened in