TY - GEN
T1 - When is the concept of generalized transport costs useless? the effects of the change in the value of time
AU - Kono, T.
AU - Morisugi, H.
AU - Kishi, A.
N1 - Funding Information:
The following reagents were obtained through the AIDS Research and Reference Reagent Program, Division of AIDS, NIAID, NIH: pNL4-3 from Malcolm Martin (NIAID), MT-2 cell line from Douglas Richman (UCSD), and protease M46I and V82T mutant HIV-1 from Emilio Emini and William Schleif (Merck). We appreciate the help with drug susceptibility data from Nick Hellmann, Yolanda Lie, and their colleagues in the ViroLogic Clinical Reference Laboratory and statistical advice from Peter Gilbert. This work was supported by NIH Grants AI-29193 and a subcontract of AI-27659. J.M.-P. was supported by a postdoctoral fellowship from the Spanish Ministry of Education and a contract from the “Fundacio per a la Recerca Biomedica Germans Trias i Pujol.”
PY - 2008
Y1 - 2008
N2 - Under an exogenous working time assumption, the value of time cannot be constant: it is affected by travel time, travel fees and other exogenous factors. Our numerical simulations, assuming a nested C.E.S. form of the utility function, show that the change in value of time tends to be sensitive to travel time and slightly sensitive to travel fees. Based on the change in value of time, the influences of changes in travel time and travel fees on the number of visits can differ greatly even if those changes are equivalent in terms of generalized transportation costs.
AB - Under an exogenous working time assumption, the value of time cannot be constant: it is affected by travel time, travel fees and other exogenous factors. Our numerical simulations, assuming a nested C.E.S. form of the utility function, show that the change in value of time tends to be sensitive to travel time and slightly sensitive to travel fees. Based on the change in value of time, the influences of changes in travel time and travel fees on the number of visits can differ greatly even if those changes are equivalent in terms of generalized transportation costs.
KW - Generalized travel cost
KW - Private trip
KW - Trip demand
KW - Value of time
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U2 - 10.2495/UT080611
DO - 10.2495/UT080611
M3 - Conference contribution
AN - SCOPUS:58849145610
SN - 9781845641238
T3 - WIT Transactions on the Built Environment
SP - 629
EP - 638
BT - Urban Transport XIV
T2 - 14th International Conference on Urban Transport and the Environment in the 21st Century, Urban Transport 2008
Y2 - 1 September 2008 through 3 September 2008
ER -