Highlights ► We model travellers with explicit scheduling preferences at origin and destination. ► Travellers choose departure time minimising the expected cost of random travel time. ► We seek variability measures additive in respect to independent parts of the trip. ► The cumulant generating function and the variance are the only additive measures. ► The value of variability depends only on the scheduling preferences.
Abstract This paper derives a measure of travel time variability for travellers equipped with scheduling preferences defined in terms of time-varying utility rates, and who choose departure time optimally. The corresponding value of travel time variability is a constant that depends only on preference parameters. The measure is unique in being additive with respect to independent parts of a trip. It has the variance of travel time as a special case. Extension is provided to the case of travellers who use a scheduled service with fixed headway.
Additive measures of travel time variability
Transportation Research Part B: Methodological ; 45 , 10 ; 1560-1571
2011-07-09
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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