“…In the previous studies, most of the explanatory variables used in tour complexity or stop frequency modeling are classified into personal and household demographic variables (Chu, 2003(Chu, , 2005Bhat & Singh, 2000;Chowdhury & Scott, 2018;Schneider et al, 2021;Verma, Verma, Sarangi, Yadav, & M, 2021); environmental or land use related variables (Chu, 2003(Chu, , 2005(Chu, , 2022Chowdhury & Scott, 2018;Zhu & Guo, 2022); activity related variables such as ar-rival/departure time; activity duration (Chu, 2003(Chu, , 2005Bhat & Singh, 2000;Chowdhury & Scott, 2018;Xianyu, 2013); transportation related attributes such as mode choice (Chu, 2003;Chowdhury & Scott, 2018;Xianyu, 2013;Liu, 2013), and travel time or distance (Bhat & Singh, 2000;Xianyu, 2013;Liu, 2013;Zhu & Guo, 2022;Chu, 2022).…”