“…Mass urban transport proposes models of transport modes within the environ- the expression "smart cities" in their publications, even if they are included in urban or metropolitan technological environment for trams (Vernard et al, 2009;Chen et al, 2019;Retscher & Bekenova, 2020, Akcin et al, 2016Savchuk & Nahorny, 2020) or subways (Kim et al, 2021;Piao et al, 2020, Kang et al, 2020, Loy-Benitez et al, 2020Jafari et al, 2021).…”