The scheduled maintenance will add upwards of half-an-hour to commutes when the section of the Blue Line running between Airport Station and Wonderland is replaced by shuttle service.

Planned work on the Blue Line will see a large portion of the track closed for nine days in August, according to the latest workplan from the MBTA.

The good news is the MTA isn’t jacking up subway, bus or commuter rail fares this year, as was previously planned. The bad ...