Increasing the speed limit on Indiana interstates has not increased the number of fatalities or severe injuries.

It was three years ago the speed limit was raised on rural portions of interstates from 65 to 70 miles per hour.

A Purdue University study found fatalities did not increase, because drivers were already going above the posted speed limit and the differences in drivers' speeds were lowered.

It also found higher accident rates for some non-interstate highways were speeds were increased.

Indiana State Police who patrol Interstate 65 have not seen an increase in fatalities since the speed limit was increased.