Artículos de revistas
The value of travel time savings and the value of leisure in Zurich: Estimation, decomposition and policy implications
Fecha
2021Registro en:
Transportation Research Part A 150 (2021) 186–215
10.1016/j.tra.2021.06.015
Autor
Schmid, Basil
Molloy, Joseph
Peer, Stefanie
Jokubauskaite, Simona
Aschauer, Florian
Hössinger, Reinhard
Gerike, Regine
Jara Díaz, Sergio Rodolfo
Axhausen, Kay W.
Institución
Resumen
We use state-of-the art estimation approaches to obtain mode-specific values of travel time
savings (VTTS) based on pooled RP/SP travel choice data of Zurich workers. Unlike the
large majority of time valuation studies, we also have data on the respondents’ time-use and
expenditure allocation, which enables us to estimate their value of leisure (VoL), i.e. the
opportunity value of liberated time when the duration of a committed activity, such as travel,
is reduced. We use the estimates of the VoL and the VTTS to derive the value of time assigned
to travel (VTAT) – the monetary value of the direct (dis-)utility derived from the conditions
experienced while traveling. Linking the VTTS and VoL at the individual-level allows for a
detailed analysis of VTAT distributions. We obtain median VTTS for car and motorbike (MIV)
of 30.6 CHF/h, carpooling (CP) of 27.7 CHF/h, carsharing (CS) of 26.7 CHF/h, walk of 26.7
CHF/h, bike of 18.2 CHF/h and public transportation (PT) of 14.8 CHF/h. The median VoL
amounts to 25.2 CHF/h. We find that MIV, CS and CP perform worst in terms of VTAT (as
indicated by values smaller than zero), showing that the perceived travel comfort all in car
modes (private, shared and pooled) is substantially lower than for PT and bike, where the
VTAT are greater than zero. From a transportation policy perspective, our results suggest that
travel comfort matters greatly and investing in the quality of travel should therefore obtain
more attention. However, from a PT operator’s point of view, our results indicate that in the
case of Zurich, investing in faster connections may exhibit a higher marginal impact on user
benefits, since the VoL is relatively high, while travel comfort is perceived as high already.