Additive measures of travel time variability

TY - JOUR

T1 - Additive measures of travel time variability

AU - Engelson, Leonid

AU - Fosgerau, Mogens

PY - 2011/12

Y1 - 2011/12

N2 - 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.

AB - 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.

KW - Additivity

KW - Reliability

KW - Scheduling preferences

KW - Travel time variability

UR - http://www.scopus.com/inward/record.url?scp=80455174656&partnerID=8YFLogxK

U2 - 10.1016/j.trb.2011.07.002

DO - 10.1016/j.trb.2011.07.002

M3 - Journal article

AN - SCOPUS:80455174656

SN - 0191-2615

VL - 45

SP - 1560

EP - 1571

JO - Transportation Research. Part B: Methodological

JF - Transportation Research. Part B: Methodological

IS - 10

ER -