I swear, about ten or fifteen years ago, riders on the D Line suffered three years of delays and weekend closings while all the above-ground stations were reconfigured for three-car trains.
I have never seen a three-car train on the D Line, ever, before or after this.
Now, riders will have to endure two months of delays and weekend closings while repairs and renovations are made, again (unrelated to the three-car thing).
If anyone can find details on the three-car thing, can you let me know?
Source: Summer repairs on Green Line will halt D branch trains – The Boston Globe