 University of Maryland professor Michael Foo says those walking in the front of that mess will get out faster, but everyone else getting on the escalator behind them willing to stand will not because the other standers slow everybody down. So the best way is a compromise of sorts. People that get on the left side, they don't have to be what I could call full walkers. Instead, they could walk a few steps, then slide over into empty space on the right while the walkers keep going. John Doehm in WTOP News. I don't know that we're going to be able to get everyone to cooperate in that way.