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The impacts of household structure on the individual stochastic travel and out of-home activity time budgets
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Transport and Location Analysis. KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Transport Studies, CTS.ORCID iD: 0000-0001-7124-7164
2014 (English)In: Journal of Advanced Transportation, ISSN 0197-6729, Vol. 48, no 5, 454-470 p.Article in journal (Refereed) Published
Abstract [en]

The amount of time individuals and households spend in travelling and in out-of-door activities can be seen as a result of complex daily interactions between household members, influenced by opportunities and constraints, which vary from day to day. Extending the deterministic concept of travel time budget to a stochastic term and applying a stochastic frontier model to a dataset from the 2004 UK National Travel Survey, this study examines the hidden stochastic limit and the variations of the individual and household travel time and out-of-home activity duration - concepts associated with travel time budget. The results show that most individuals may not have reached the limit of their ability to travel and may still be able to spend further time in travel activities. The analysis of the model outcomes and distribution tests show that among a range of employment statuses, only full-time workers' out-of-home time expenditure has reached its limit. Also observed is the effect of having children in the household: Children reduce the flexibility of hidden constraints of adult household members' out-of-home time, thus reducing their ability to be further engaged with out-of-home activities. Even when out-of-home trips are taken into account in the analysis, the model shows that the dependent children's in-home responsibility reduces the ability of an individual to travel to and to be engaged with out-of-home activities. This study also suggests that, compared with the individual travel time spent, the individual out-of-home time expenditure may perform as a better budget indicator in drawing the constraints of individual space-time prisms.

Place, publisher, year, edition, pages
2014. Vol. 48, no 5, 454-470 p.
Keyword [en]
household structure, stochastic frontier model, travel time budget, UK National Travel Survey
National Category
Transport Systems and Logistics
URN: urn:nbn:se:kth:diva-138245DOI: 10.1002/atr.1234ISI: 000341238300007ScopusID: 2-s2.0-84906788783OAI: diva2:680646

QC 20140919

Available from: 2013-12-18 Created: 2013-12-18 Last updated: 2014-10-03Bibliographically approved

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Susilo, Yusak
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