1. Al-Sharif L (1996) Escalator handling capacity: Standards versus practice. Internal Report, London Underground Ltd.
2. Bodendorf H, Osterkamp M, Seyfried A, and Holl S (2014) Field studies on the capacity of escalators. Transportation Research Procedia 2:213–218
3. BS 5656-2:2004 (2004) Escalator and moving walks — Safety rules for the construction and installation of escalators and moving walks, Part 2: Code of practice for the selection, installation and location of new escalators and moving walks. BS 5656-2:2004, British Standards Institution, London, UK
4. Bureau of Public Roads (1964) Traffic assignment manual. U.S. Department of Commerce, Washington DC, USA
5. Cheung CY, Lam WH (1998) Pedestrian route choices between escalator and stairway in MTR stations. Journal of Transportation Engineering 124(3):277–285, DOI: https://doi.org/10.1061/(ASCE)0733-947X(1998)124:3(277)