“…An accurate measure of public transport availability could enhance the demand and supply analysis for public transport services. Earlier studies measured purely proximity-based public transport availability, considering the number of public transport stops in the local area, or proximity to public transport stops (Fan et al., 2010); whilst in the last two decades some studies have attempted to measure public transport availability by combining spatial proximity and service frequency, including the number of routes and frequency of service, which have provided a more complete and realistic picture of public transport availability (Currie, 2010; Eboli and Mazzulla, 2012; Fu and Xin, 2007; Lovett et al., 2002; Mamun and Lownes, 2011; Mavoa et al., 2012; Mondou, 2001; Polzin et al., 2002; Rood, 1998; Ryus et al., 2000; Wu and Hine, 2003; Xu et al., 2015; Yigitcanlar et al., 2008; ). Using public transport availability to represent the level of public transport provision, researchers have attempted to evaluate public transport equity within cities or evaluate public transport equity in a city as a whole (Delbosc and Currie, 2011; Ricciardi et al., 2015; Rock et al., 2016; Shirmohammadli et al., 2016).…”