The TAB’s Julie Cohen has the details about the upcoming reconstruction of the MBTA Green line tracks

Construction will go from 9 p.m.-4:30 a.m. on Sunday-Thursday along certain sections of the D Line, according to the MBTA. From 9 p.m.-12:30 a.m. buses will replace the trains. Normal train service will resume at 5 a.m. Work will run through Dec. 28 this year and start up on April 9 in 2019