ANN ARBOR – While men still drive more miles annually, women

are slowly catching up, says a University of Michigan researcher.

Over the past 50 years, the average annual distance driven

rose by about 33 percent for men, but for women, the increase is a whopping 89

percent. In the early 1960s, the average male drove more than twice the

distance of the average female; today, it’s down to one-and-half times (roughly

15,000 miles for men vs. 10,000 miles for women annually)

Using data from the Federal Highway Administration, Michael

Sivak, a research professor at the U-M Transportation Research Institute,

examined changes in the gender demographics of U.S. drivers from 1963 to 2013.

He found that in 1963, women accounted for just under 40

percent of all drivers. Today, they constitute nearly 51 percent, and have been

the majority over the past 10 years.

“Although female drivers are currently a slight

majority, the likelihood of them being on the road depends not only on their

relative numbers, but also on the relative amount of driving that they

do,” Sivak said.

A consideration of both the percentage of drivers by gender

and the average annual miles driven by gender shows that about 41 percent of

drivers on the road at any given time today are female, compared to roughly 24

percent in 1963.

“The observed gender trends in driver licensing will

likely have major implications on the extent and nature of vehicle demand,

energy consumption and road safety,” Sivak said. “This is the case

because, compared to males, females are more likely to purchase smaller, safer

and more fuel-efficient vehicles than males. Females drive less and tend to

have a lower fatality rate per distance driven.”