Change search
ReferencesLink to record
Permanent link

Direct link
The value of travel time variability with trip chains, flexible scheduling and correlated travel times
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Traffic and Logistics.ORCID iD: 0000-0002-4106-3126
2012 (English)In: Transportation Research Part B: Methodological, ISSN 0191-2615, Vol. 46, no 6, 762-780 p.Article in journal (Refereed) Published
Abstract [en]

This paper extends the analysis of the value of mean travel time (VMTT) and day-to-day travel time variability (VTTV) from single, isolated trips to daily trip chains, considering the effects of flexibility in activity scheduling and within-day correlation of travel times. Using a multi-stage stochastic programming approach, we show that the VMTT and VTTV on a trip is conditional on the realized travel times on preceding trips, first through the arrival time to the preceding activity and second through the information provided about subsequent travel times. Analytical formulas for the VMTT and VTTV are obtained for two special cases with piecewise constant and linear marginal cost functions, respectively. With flexible scheduling, there is typically a cost associated with a positive correlation of travel times, arising from persistent deviations from typical travel demand or supply on a given day. However, there is also a strict benefit in the dependence since it allows for a more efficient scheduling of later trips.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 46, no 6, 762-780 p.
Keyword [en]
Activity scheduling, Reliability, Travel time correlation, Travel time variability, Trip chains
National Category
Transport Systems and Logistics
URN: urn:nbn:se:kth:diva-71753DOI: 10.1016/j.trb.2012.02.003ISI: 000304892400006ScopusID: 2-s2.0-84860882471OAI: diva2:486960
TrenOp, Transport Research Environment with Novel Perspectives

QC 20120208

Available from: 2012-01-31 Created: 2012-01-31 Last updated: 2013-04-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Jenelius, Erik
By organisation
Traffic and Logistics
In the same journal
Transportation Research Part B: Methodological
Transport Systems and Logistics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 26 hits
ReferencesLink to record
Permanent link

Direct link