“…For example, the bus line between Haag-Leiden (Netherlands), where the bus is only free during weekdays (Goeverde et al, 2006). Specific fare-free bus line 5 bus lines providing the connection with the regional transport system Source: Author's compilation based on Fearnley (2013), Hess (2017), Keblowski (2019) Besides single lines, the system can also be introduced in specifics areas like the city centre, etc. -Stavanger (Norway), Seattle (Washington, USA), Orlando (Florida, USA), Tempe (Arizona, USA) (Volinsky, 2012;Fearnley, 2013).…”