How Derived is the Demand for Travel? Some Conceptual and Measurement Considerations

How Derived is the Demand for Travel? Some Conceptual and Measurement Considerations

2001-09-01 | Patricia L. Mokhtarian, Ilan Salomon
This paper challenges the conventional view that travel is a derived demand, arguing that under certain circumstances, travel is desired for its own sake. The authors discuss the phenomenon of undirected travel, where travel is not a byproduct of an activity but the activity itself. They explore how the desire for travel can be influenced by factors such as speed, motion, control, and enjoyment of beauty, which may also lead to excess travel even in mandatory or maintenance trips. The paper highlights the complexity of measuring a positive affinity for travel, as respondents often confuse their utility for activities conducted at the destination with the utility for traveling itself. Despite these challenges, preliminary empirical results from a study of over 1900 residents of the San Francisco Bay Area suggest that there is a positive utility for travel and a desired travel time budget (TTB). The authors argue that understanding this intrinsic desire for travel is crucial for designing policies that are more responsive to natural inclinations and for improving forecasts of travel behavior.This paper challenges the conventional view that travel is a derived demand, arguing that under certain circumstances, travel is desired for its own sake. The authors discuss the phenomenon of undirected travel, where travel is not a byproduct of an activity but the activity itself. They explore how the desire for travel can be influenced by factors such as speed, motion, control, and enjoyment of beauty, which may also lead to excess travel even in mandatory or maintenance trips. The paper highlights the complexity of measuring a positive affinity for travel, as respondents often confuse their utility for activities conducted at the destination with the utility for traveling itself. Despite these challenges, preliminary empirical results from a study of over 1900 residents of the San Francisco Bay Area suggest that there is a positive utility for travel and a desired travel time budget (TTB). The authors argue that understanding this intrinsic desire for travel is crucial for designing policies that are more responsive to natural inclinations and for improving forecasts of travel behavior.
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