“…Thus, only a handful of recent studies have considered activity time-use behavior and activity timing behavior in a joint framework (see Bhat, 1998, Yamamoto, et al, 2000, Chu, 2005, Joh et al, 2002, Ashiru et al, 2004, and Ettema et al, 2007. Most of these studies, however, consider activity participation during only certain specific portions of the day (Bhat, 1998;and Yamamoto et al, 2000), or consider only a single activity purpose or a very restricted set of activity purposes (Ettema et al, 2007, Ashiru et al, 2004and Chu, 2005.…”