A multi-instrumented approach to observing the activity rescheduling decision process |
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Authors: | Andrew F Clark Sean T Doherty |
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Institution: | (1) Department of Geography and Environmental Studies, Wilfrid Laurier University, 75 University Ave. W., Waterloo, ON, N2L 3C5, Canada; |
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Abstract: | Activity scheduling simulation models represent an emerging and proposing approach to forecasting travel demand. The most
significant developmental challenge is the lack of empirical data on how people actually proceed through the scheduling and
conflict resolution process. This paper develops a new methodology to collect data about the rescheduling decision process.
The data collection involves six stages: preplanned schedule interview, coding of the preplanned schedule, second-by-second
Global Positioning System tracking, internet-based prompted recall diary, detection of rescheduling decisions (via comparison
of planned versus executed activities), and a final in-depth interview probing the how and why of rescheduling decisions.
Each stage of the methodology is described in detail with example results drawn from a pilot study. Key discoveries include:
elicitation of multiple preplanned schedule reporting methods (verbal, point-form, calendar); discovery that activity attributes
(time, location, involved persons) are planned on significantly different time horizons and include partial elaboration; and
provision of new insights into how and why rescheduling decisions are made. A method for automatically tracking rescheduling
decisions was also discovered. Overall, the new methodology has potential to contribute to the development of more realistic
models of the entire scheduling process, especially rescheduling and conflict resolution sub-models. |
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Keywords: | |
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