Khattak, Afaq, Yangsheng Jiang, Juanxiu Zhu, and Lu Hu. “A New Simulation-Optimization Approach for the Circulation Facilities Design at Urban Rail Transit Station”. Archives of Transport 43, no. 3 (September 30, 2017): 69–90. Accessed May 5, 2024. https://www.archivesoftransport.com/index.php/aot/article/view/468.