Travel time budgets: new evidence from multi-year, multi-day data

The existence of stable personal travel‐time expenditure has been debated for more than 40 years. Aggregate research has supported this notion, while disaggregate research has largely failed to find evidence. In this paper, a unique data set containing multi‐day GPS measurements of travel time expenditures over a period from 5 to 8 years is used to examine the evidence for stable daily personal travel‐time expenditures. The evidence from this study adds further support to the notion that people expend a stable amount of travel time over a period as long as 8 years, and the average level of such expenditure accords almost exactly with that claimed over the years from aggregate studies.