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Impacts of Household Structure on Individual Stochastic Travel and Out-of-Home Activity Time Budgets
KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Transport Studies, CTS. KTH, School of Architecture and the Built Environment (ABE), Transport Science, Transport and Location Analysis.ORCID iD: 0000-0001-7124-7164
2012 (English)Conference paper (Refereed)
Abstract [en]

The amount of time households and individuals spend on travelling 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 unseen stochastic limit and the variations of the individual and household travel time and out-of-home activity duration overtime – concepts associated with travel time budgets. The results show that most individuals may have not have reached their limit yet 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 unseen constraints of adult household members‟ out-of-home time thus reduce their ability to engage further at out-of-home activities. Even after the out-of-home trips taken into account in the analysis, the model shows that the dependent children‟s in-home responsibility will still reduce the ability of individual to travel to and engage at out-of-home activities. This study also suggests that the individual out-of-home time expenditure may be a better budget indicator in drawing the constraints in individual space-time prisms than individual travel time budget.

Place, publisher, year, edition, pages
Washington DC, 2012.
National Category
Transport Systems and Logistics
URN: urn:nbn:se:kth:diva-71771OAI: diva2:486978
The 91st Transportation Research Board Annual Meeting
TrenOp, Transport Research Environment with Novel Perspectives

TSC import 956 2012-01-30 QC 20130524

Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2013-05-24Bibliographically approved

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Susilo, Yusak
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Centre for Transport Studies, CTSTransport and Location Analysis
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