Yadav, Varsha, and Rajat Rastogi. “Escalator Level of Service (ELOS) Criteria Based on Flow Characteristics on Escalators and in Approach Area”. European Journal of Transport and Infrastructure Research 25, no. 4 (December 31, 2025). Accessed January 21, 2026. https://journals.open.tudelft.nl/ejtir/article/view/7868.