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Auteur Harry Timmermans |
Documents disponibles écrits par cet auteur (3)
Ajouter le résultat dans votre panier Affiner la recherche Interroger des sources externesTowards process validation for complex transport models: A sensitivity analysis of a social network-enhanced activity-travel model / Nicole Ronald in Computers, Environment and Urban Systems, vol 55 (January 2016)
Titre : Towards process validation for complex transport models: A sensitivity analysis of a social network-enhanced activity-travel model Type de document : Article/Communication Auteurs : Nicole Ronald, Auteur ; Theo Arentze, Auteur ; Harry Timmermans, Auteur Année de publication : 2016 Article en page(s) : pp 24 - 32 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique
[Termes IGN] agent (intelligence artificielle)
[Termes IGN] analyse de sensibilité
[Termes IGN] comportement
[Termes IGN] modèle orienté agent
[Termes IGN] réseau social
[Termes IGN] transport urbainRésumé : (auteur) Model validation is a significant issue for the modelling of social network-based transportation models because of the many interacting components (the individuals, the environment, and now the network) in the model.
In this paper we focus on a sensitivity analysis for such a model, which is part of a larger validation approach known as process validation. This approach investigates both the structure and behaviour of the model, to evaluate whether the model can be used for prediction.
The paper draws on a novel set of experiments with an agent-based model which was developed to explore the effects of social networks on activity and travel behaviour. Several versions of the model were created, beginning with a single day model with no interaction, and then adding in multi-day runs with interactions, in order to demonstrate the validation process.
The paper argues that testing the model at different levels of complexity increases confidence in the model and makes it easier to locate components or functionality that require improvement. It concludes by suggesting that this approach to sensitivity testing should be adopted for validation of complex transportation models.Numéro de notice : A2016-391 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.compenvurbsys.2015.09.005 Date de publication en ligne : 22/10/2015 En ligne : http://dx.doi.org/10.1016/j.compenvurbsys.2015.09.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=81205
in Computers, Environment and Urban Systems > vol 55 (January 2016) . - pp 24 - 32[article]
Titre : An agent-based micro-simulation framework for modelling of dynamic activity-travel rescheduling decisions Type de document : Article/Communication Auteurs : Theo Arentze, Auteur ; C. Pelizaro, Auteur ; Harry Timmermans, Auteur Année de publication : 2010 Article en page(s) : pp 1149 - 1170 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale
[Termes IGN] agent (intelligence artificielle)
[Termes IGN] mobilité urbaine
[Termes IGN] modèle de simulation
[Termes IGN] Pays-Bas
[Termes IGN] simulation dynamiqueRésumé : (Auteur) The simultaneous implementation of daily activity-travel schedules of individuals in a given spatial environment generally gives rise to time- and location-varying congestion levels, which affect the conditions for subsequent activity and travel choices. Although such dynamics are commonly recognized, current activity-based models typically ignore the adaptive behaviour of individuals. In this article, we propose an agent-based simulation system that allows one to simulate, in addition to activity-scheduling behaviour, also the execution of schedules in space and time. Congestion levels at specific times and places emerge in the system and may lead to discrepancies between scheduled and actual activity and travel times. Agents respond to such unforeseen events by reconsidering an existing schedule (within-day re-planning) and by adapting their expectations about traffic conditions for subsequent days (learning). The system is illustrated using the activity-travel diary data collected in the Eindhoven region, the Netherlands, to better understand the choice of urban parks in the study area. We discuss the merits of the system for transport and spatial planning and identify avenues for future research. Numéro de notice : A2010-324 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810903317022 En ligne : https://doi.org/10.1080/13658810903317022 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30518
in International journal of geographical information science IJGIS > vol 24 n°7-8 (july 2010) . - pp 1149 - 1170[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 079-2010041 RAB Revue Centre de documentation En réserve L003 Disponible 079-2010042 RAB Revue Centre de documentation En réserve L003 Disponible
Titre : Multistate supernetwork approach to modelling multi-activity, multimodal trip chains Type de document : Article/Communication Auteurs : Theo Arentze, Auteur ; Harry Timmermans, Auteur Année de publication : 2004 Article en page(s) : pp 631 - 651 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] analyse coût-avantage
[Termes IGN] mobilité urbaine
[Termes IGN] réseau de transport
[Termes IGN] trajet (mobilité)Résumé : (Auteur) Least-costs path finding methods belong to the standard toolkit of geographical information science and allow one to assign trips with known origin and destination to a transport network. An extension of the network representation is proposed that allows one to model complete trip chains (tours) that may involve multiple transport modes and multiple activities, as a least-cost path through the network. The extension is based on the notion that link costs may change as a consequence of activity and vehicle choices during the tour. The extended network or supernetwork contains as many copies of the network as there are possible activity-vehicle states and additional state transition links to interconnect them. In this way, not only the generalized link cost function, but also the start and end points of a path can be defined state dependently. A leastcost path through a multistate network defines an optimal sequence of travelling, transferring, parking, conducting activities and dropping off products of activities. An application shows how a multistate network can be constructed and used to assess the impacts of network design variables on path choice. Numéro de notice : A2004-625 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Article DOI : 10.1080/13658810410001701978 En ligne : https://doi.org/10.1080/13658810410001701978 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26921
in International journal of geographical information science IJGIS > vol 18 n° 7 (november 2004) . - pp 631 - 651[article]Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 079-04071 RAB Revue Centre de documentation En réserve L003 Disponible 079-04072 RAB Revue Centre de documentation En réserve L003 Disponible
