如果合理, 我跟有咩問題.
事實係, 繁忙時間, 如果兩邊都企, 整體運輸效率會高過左行右企。
https://www.theguardian.com/uk-news/2016/jan/16/the-tube-at-a-standstill-why-tfl-stopped-people-walking-up-the-escalators
London Underground 曾經有條友來過香港, "發現" 港人左右都企反而更有效率, 於是嘗試返倫敦有樣學樣。
"Len Lau, Vauxhall area manager, had gone to Hong Kong on holiday. Lau noticed that passengers on that city’s Mass Transit Railway (MTR) were standing calmly on both sides of the escalator and, it seemed, travelling more efficiently and safely as a result. His report prompted Harrison and her colleagues to wonder whether the same effect would apply at a station such as Holborn, and so they set about arranging a three-week trial."
不過最後失敗, 原因唔係唔work, 而係倫敦人唔肯改變習慣....