Pougala, Janody;
Hillel, Tim;
Bierlaire, Michel;
(2021)
An optimization framework for daily activity schedules.
In:
Proceedings of the 9th Symposium of the European Association for Research in Transportation.
(pp. pp. 1-13).
European Association for Research in Transportation: Lyon, France.
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Abstract
Transport planners and operators have to face nowadays increasingly complex mobility behaviors. Traditional trip-based models become very limited in terms of behavioral accuracy when it comes to anticipating and accommodating these new, and hard-to-capture needs. The shift towards activity-based approaches is thus natural, as this alternative is better equipped to deal with individual-level granularity. The assumption behind these models is that all transport-related choices made by a person (e.g. number of trips, location and mode choice) are derived from the need to do activities, and their spatio-temporal sequence. We propose a modelling approach based on first principles: a traveler schedules their activities in order to maximize the total utility they can derive out of them, thus solving a mixed integer optimization problem. Our model allows to generate distributions of schedules for each individual, from which we can draw likely outcomes. Another contribution is the simultaneous inclusion of multiple choice dimensions (e.g. activity, location, mode choices. . . ), allowing for more flexibility than current models that treat them sequentially. The model was tested using trip diary data from the Swiss Mobility and Transport Microcensus. The results show that we are able to generate realistic activity schedules for a wide range of individuals.
| Type: | Proceedings paper |
|---|---|
| Title: | An optimization framework for daily activity schedules |
| Event: | hEART 2020: 9th Symposium of the European Association for Research in Transportation |
| Location: | Université de Lyon, France (online) |
| Dates: | 3 Feb 2021 - 4 Feb 2021 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://transp-or.epfl.ch/heart/2020.php |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10173011 |
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