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Estimating exponent...
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Hjorth, KatrineTechnical University of Denmark, Denmark
(author)
Estimating exponential scheduling preferences
- Article/chapterEnglish2015
Publisher, publication year, extent ...
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Elsevier,2015
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:vti-12397
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https://urn.kb.se/resolve?urn=urn:nbn:se:vti:diva-12397URI
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https://doi.org/10.1016/j.trb.2015.03.014DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-115992URI
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-191447URI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20160420
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Different assumptions about travelers' scheduling preferences yield different measures of the cost of travel time variability. Only few forms of scheduling preferences provide non-trivial measures which are additive over links in transport networks where link travel times are arbitrarily distributed independent random variables. Assuming smooth preferences, this holds only for specifications with a constant marginal utility of time at the origin and an exponential or affine marginal utility of time at the destination. We apply a generalized version of this model to stated preference data of car drivers' route and mode choice under uncertain travel times. Our analysis exposes some important methodological issues related to complex non-linear scheduling models. One issue is identifying the point in time where the marginal utility of being at the destination becomes larger than the marginal utility of being at the origin. Another issue is that models with the exponential marginal utility formulation suffer from empirical identification problems. Though our results are not decisive, they partly support the constant-affine specification, in which the value of travel time variability is proportional to the variance of travel time.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Börjesson, Maria,1974-KTH,Centrum för transportstudier, CTS,Royal Institute of Technology, Sweden(Swepub:liu)marbo25
(author)
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Engelson, LeonidKTH,Systemanalys och ekonomi,Royal Institute of Technology, Sweden(Swepub:liu)leoen78
(author)
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Fosgerau, MogensKTH,Systemanalys och ekonomi,Technical University of Denmark, Denmark; Royal Institute of Technology, Sweden(Swepub:kth)u13g0xwt
(author)
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Technical University of Denmark, DenmarkCentrum för transportstudier, CTS
(creator_code:org_t)
Related titles
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In:Transportation Research Part B: Elsevier81:1, s. 230-2510191-26151879-2367
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