“…& van der Waerden, 2008;van der Waerden, Timmermans, & van Neerven, 2009), questionnaire surveys and activity diaries (Berliner, Malokin, Circella, & Mokhtarian, 2015;Diana, 2008;Ettema, Friman, Gärling, Olsson, & Fujii, 2012;Ettema & Verschuren 2007;Frei, Mahmassani, & Frei, 2015;Guo et al, 2015;Kenyon, 2008;Kenyon & Lyons, 2007;Keseru et al, 2015;Lyons, Jain, & Holley, 2007;Lyons et al, 2013;Lyons, Jain, & Weir, 2016;Malokin et al, 2015;Mokhtarian, Papon, Goulard, & Diana, 2015;Ohmori & Harata, 2008;Yosritzal, 2014;Zhang & Timmermans, 2010), and interviews or focus groups (Handy et al, 2005;Jain & Lyons, 2008). While observations can reduce response bias and more accurately capture activity durations, self-reported survey data may be more useful for studying PUT because activities may be more closely related to underlying motivations (recall the activities vs. items discussion).…”