Track outages in two weekends (September/October) due to "continuing construction work at Atlantic Yards"

Well, the fact of an under-construction arena has Curbed all excited (though not so much any security concerns). Meanwhile, construction does have consequences: subway closures.

The latest Atlantic Yards Construction Alert provided this ambiguous information:

Track Outages (General Orders)

IRT and BMT Tunnel inspections have taken place and repair work will be implemented during scheduled NYCT track outages during evenings and weekends. An IRT GO is scheduled for Saturday, August 27th to perform ceramic tile work. The next BMT GO’s will take place in September and October and are currently being scheduled with NYCT. Minor repair and cleanup work will occur on selective evenings under scheduled NYCT flagging protection.

Brooklyn Community Board 14, recipient of a message from the Metropolitan Transportation Authority, provides more detail:

Weekends of September 23-25 and October 14-16, 2011:
From Friday beginning at 10:00 PM to Monday ending at 5:00 AM, for these two weekends B & Q service will be suspended between Pacific Street and Prospect Park, due to continuing construction work at Atlantic Yards. Shuttle bus service will be provided at Pacific Street, 7th Avenue, and Prospect Park B & Q stations.