UPDATE: The T now reports: "As of Sunday, June 16, Braintree branch riders will no longer need to switch trains at JFK/UMass."

As promised, the MBTA sent test trains down the repaired Red Line track at JFK/UMass today to see if it's ready for service on Monday. Only they ran into a problem that had nothing to do with the track: One of the test trains suffered mechanical problems and died - which led to 20-minute delays along the Braintree branch.

Nikki T watched as one of the brand spankin' new Orange Line trains barreled through Green Street station this morning. It didn't stop to let anyone enjoy that new-train odor, of course - it was just on a test run getting ready, we hear, for actual service later this summer. Read more.

From his seat on a commuter-rail train, Jed Hresko got a good view of the work this morning to repair the signal bungalows and tracks at JFK/UMass that were damaged in the Red Line derailment on Tuesday. Read more.

The MBTA says repairs are continuing on the tracks and signal systems taken out in Tuesday's derailment but say they won't know until this weekend when they might be able to resume direct Braintree service.

The MBTA will provide a schedule update on Sunday regarding resumption of Braintree branch service resuming through JFK/UMass.

Yeah, it's a publicity stunt (and possible list-building exercise) by the Massachusetts Democratic Party, but this petition urging Gov. Baker to actually ride the T is certainly a valid question when the governor is saying the T is moving in the right direction right after the Red Line pretty much stopped moving at all due to that car that derailed and took out key signaling equipment with it (even Mitt Romney took the T once, even if he only rode for one stop and was unable to say how much a ride cost). Read more.

The MBTA reports it'll be shutting the subway line down at 11 a.m. to try to make signal repairs related to the derailment yesterday: Read more.

State Police report the ramps to and from the expressway at Exit 15 (Columbia Point) will be shut at 7 p.m. so workers can try to do something about that derailed Red Line train at JFK/UMass. When will they reopen? State Police say your guess is as good as theirs.

Installation of a permanent bus/bike lane on Brighton Avenue inbound between Union Square and Packards Corner in Allston begins tomorrow, the mayor's office announced today. Read more.

WCVB reports the driver of the trolley that came off the tracks just outbound from Kenmore on Saturday morning has been suspended after T investigators determined the derailment was not caused by problems with either the trolley or the tracks.