Staring next Monday, August 25th the escalators (ES 411 and 414) normally locked in the down direction will be locked as "up" escaltors for three weeks and the only down to the platforms will be the stairs or the elevators. G-d help us if the elevators are out of service.
The reason for this temporary inconvenience is that the curent "up" escaltors, ES 413 and 416, are being closed so that the adjacent escalators, ES 412 and 415, currently under construction can be completed.
No word yet when ES 413 and 416 will be taken out of service for long term construction. Presumably after ES 412 and and 415 are fully back on line.