Metro will be using a Sunday schedule for Monday's Labor Day holiday. This means that trains will be running between 7 a.m. and midnight and that parking at most (if not all) Metro lots will be free. Metrobus will also be running on a Sunday schedule. MARC and VRE, as usual, will not be offering service on the holiday. Also, if you're travelling on the Blue and Yellow lines, don't forget that there will be massive track replacement work between the National Airport and Braddock Road stations. No trains will run between the two; to supplement the fragmented service, free shuttle buses will be available every five minutes between the two affected stations -- we recommend factoring in a lot of extra travel time to be safe.