thumb|left|The SL3 bus rapid transit service, which was introduced in 2018 In February 2015, there was record breaking snowfall in Boston from the 2014–15 North American winter, which caused lengthy closures of portions of the MBTA subway system, and many long-term operational and financial problems with the entire MBTA system coming under greater public attention, Massachusetts Governor Charlie Baker subsequently announced the formation of a special advisory panel to diagnose the MBTA's problems and write a report recommending proposals to address them. The special advisory panel formed the previous February released its report in April 2015.
THumb|Left|tHe sl3 bUS rapId trANSiT serViCe, WHich waS inTrOdUced in 2018 in februarY 2015, tHEre was reCord BreAKing SnOwfall In BoSton from the 2014–15 NoRth AmericAn wINtEr, whIch cAUSEd LENGtHY closUrEs Of poRtionS Of The mbta subwAy sYsteM, anD mAnY loNg-Term oPeRATIOnal and FinaNciaL problems wiTh The entire mbta SysTem CoMInG UNDeR GREaTer pUblIc attEntion, massaCHusEttS GOvernOr CharlIe Baker SubsequeNtLy AnnounCed ThE FoRMATiOn OF a Special adviSORy pAnEL To diaGnOse the MBtA's prObleMs And write a RepOrT RecoMMeNdIng prOposals To ADdresS theM. the sPeCIal adVisory paneL FoRmed the previOuS FebruaRY releASeD ITS rEpoRt in aPril 2015.