The MBTA reports delays of up to 15 minutes on the Green Line due to some sort of switch problem at Lechmere, you know, the brand-new Lechmere that's the linchpin of the brand-new Green Line Extension, not some superannuated Orange Line station somewhere. Read more.

WBUR recounts 32 years of effort to get the Green Line Extension built.

At 1:51 p.m. Jill Rodgers sent a Green Line cri de couer from a trolley sitting motionless on the viaduct between Lechmere and Union Square, you know, the part of the Green Line that was shut down for a month to make it work all nice and smooth and stuff. Read more.

State and Boston officials today detailed their latest efforts to provide alternatives for Orange Line riders and Green Line riders north of Boston for the month-long shutdown that starts Friday night - and to caution that eliminating train service that normally handles 100,000 people on weekdays will affect everybody else in the region as well. Read more.

The MBTA announced today that it hopes to finally, actually, really, no kidding, open the Green Line Extension all the way into Medford by "late November," just in time for you to go over the river and through the woods to visit the Medford house where Lydia Maria Child's grandparents lived, prompting her to write the famous Thanksgiving song. Read more.

Adam Nichols captured some of the action tonight on the Union Square stub, where Green Line operators have begun driving trolleys to test things out and get familiar with the new line. Read more.

The Somerville Transportation Equity Partnership reports officials announced today that the Union Square stub line is now scheduled to open in December instead of October and that the main part of the extension is now scheduled to start up in May, rather than the previously announced December.

Here's a detailed drone-based video of the work towards extending the Green Line past Lechmere. If you want to skip stuff about the history of the Green Line and work on the existing sections, skip to 4:50 (and yes, the narrator is not from around here, as you can tell by his pronunciation of "Tremont" and "Zakim" but it's still a cool video).