“…The development of the travel time cube stems from earlier research that brought to light the temporal variability that exists in transit-based access to destinations (Lei & Church, 2010;Lei, Chen, & Goulias, 2012;Polzin, Pendyala, & Navari, 2002) and the investigation of this temporal variability within a variety of applied accessibility studies (Farber et al, 2014;Owen & Levinson, 2015;Legrain, Buliung, & El-geneidy, 2015;Farber, Ritter, & Fu, 2016;Boisjoly & El-geneidy, 2016;Fransen et al, 2015;Xu, Ding, Zhou, & Li, 2015). All of these works use the variation in transit supply to measure accessibility changes over the course of the day.…”