There is an interesting chart that appears in a new UC Davis report on imagining the future of transportation. The chart comes from a 1998 article in the European Review. The chart illustrates how that prior changes in transportation technology have taken 30 to 70 years to reach peak implementation. The chart is reproduced below.
 Ogden, J. & Anderson, L. (Eds.) (2011). Sustainable Transportation Energy Pathways: A Research Summary for Decisionmakers. Davis, CA: UC Davis Institute of Transportation Studies, p. 6 – Available at http://www.steps.ucdavis.edu/STEPS.Book