2008 Michigan Personal Universal 
Green Car Congress
JANUARY 6, 2020
Since 2011 , I have periodically examined changes in the proportion of persons with a driver’s license as a function of age. The previous study compared data for 1983 (as the baseline) with those for 2008, 2011, 2014, and 2017. That was followed by modest increases in the licensure for all age groups between 2014 and 2017.
Green Car Congress
MARCH 10, 2022
In 2011 , Brandon Schoettle and I documented the fact that, during the 25-year period from 1983 to 2008, there was a large reduction in the proportion of young persons with a driver’s license, and an increase in the licensing of older persons. Licensing of older persons—those 60 and older—increased.
Green Car Congress
FEBRUARY 2, 2019
In a 2011 article , Brandon Schoettle and I showed that the proportion of young Americans aged 16 to 39 years with a driver’s license decreased substantially from 1983 to 2008. (In In contrast, the proportion of older persons with a driver’s license increased during the same period.) This article reports on two follow-up analyses.
Green Car Congress
JANUARY 19, 2016
An analysis by Dr. Michael Sivak and Brandon Schoettle at University of Michigan Transportation Research Institute (UMTRI) has found recent decreases in the proportion of persons with a driver’s license across all age groups in the US. The study examined data came the Federal Highway Administration (FHWA) from 1983 to 2014.
Green Car Congress
DECEMBER 1, 2011
Changes in percentage of teenagers with driver’s licenses, 1983 to 2008. The age composition of US drivers has changed substantially between 1983 and 2008, according to a new study by University of Michigan researchers Michael Sivak and Brandon Schoettle, published in the journal Traffic Injury Prevention.
Green Car Congress
DECEMBER 18, 2014
The sixth in a series of reports on peak motorization in the US by Dr. Michael Sivak at the University of Michigan Transportation Research Institute (UMTRI) finds that distance driven per GDP reached its highest values in a broad plateau from the early 1970s through the early 1990s, and then decreased steadily.
Green Car Congress
JUNE 20, 2013
However, he notes, the rates of vehicles per person, licensed driver, and household reached their maxima prior to the onset of the current economic downturn. However, he notes, the rates of vehicles per person, licensed driver, and household reached their maxima prior to the onset of the current economic downturn. million in 2008.
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