依度有篇輪文,數學部份講真我睇唔到
只貼結論
https://www.mdpi.com/2079-8954/12/6/203
To summarize, to best serve both the system and the riders (customers),
“stand right, walk left” (focus is on flow and “fairness/freedom”)
is a sensible policy to follow the majority of the time, but during times of anticipated heavy traffic, the following behavior should be induced:
Walkers go to front of queue(s) and quickly board escalator, then switch to “stand on both lanes” (focus on efficient clearing at the bottleneck).
Most importantly, the queues to board the escalator should be filled to take full advantage of pooling effects.