Modelling Behavioural Rules for Daily Activity Scheduling Using Fuzzy Logic

A delay in a trip or an early arrival can contribute to changes in the timing and location of the next activity, and to the deletion/addition of some activities. This paper uses fuzzy logic rules to explain the effect of variability in travel time on the benefits perceived by an individual with the changes, and to model different actions that the individuals take in order to re-establish the steadiness of the existing timetable. The fuzzy model is used to handle the imprecision of the data which is unstructured text. The results show that large deviations in trip duration are more likely to induce significant changes in the timetable whereas small deviations are either ignored or translated into modified timing of the next activity. In choosing an action, greater importance is assigned to the flexibility of the following activity, to the magnitude of the trip time saving/delay, and to the duration of the next activity. Time savings are not favored unless they can be readily transferred into additional activity time allocated to the next activity or to a new activity. The findings also indicate that the fuzzy rules based system satisfactorily predicts the strategy of coping with uncertainty in travel times and the level of satisfaction with the change.


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  • Accession Number: 01000482
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Jun 2 2005 9:10AM