%0 Journal Article
%T Additive measures of travel time variability
%J Transportation research part B: methodological
%D 2011
%A Engelson, Leonid
%A Fosgerau, Mogens
%V 45
%N 10
%P 1560-1571
%X 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.<p />
%G en
%I Elsevier Publishing
%@ 0191-2615
%U http://dx.doi.org/10.1016/j.trb.2011.07.002