Persons born in the most recent cohorts are traveling shorter distances than people born earlier at the same point in their life.   From Levinson and Krizek (2015) The End of Traffic and the Future of Transport. http://davidlevinson.org/the-end-of-traffic-and-the-future-of-transport/   Figure 1.6 Source: Iacono, Michael and Levinson, David (2015) Travel Behavior Over Time: Cohort Analysis of Travel Behavior. Center for Transportation Studies, University of Minnesota.
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