“…Subsequently, the number of destinations accessible in the time given or with the adopted cost is calculated (Spiekermann and Neubauer, 2002). Other examples of research into daily accessibility: Törnquist (1970), Schürmann et al (1997), Spiekermann and Wegener (1996), Vickerman et al (1999), O'Sullivan et al (2000), Gutiérrez (2001), Martin et al (2004), Du and Mulley (2006), Preston and Raje (2007), Biosca et al (2013), Ford et al (2015), Śleszyński (2017).…”