The I-70/I-71 South Innerbelt corridor in downtown Columbus – commonly called "the downtown split" – is one of the busiest and most vital sections of highway in the region. It serves approximately 150,000 vehicles and 17,000 trucks per day. Built in the 1960’s, it has served the community well. But, with the increase in traffic over the years, it has become hazardous. Although it makes up only 6 percent of the freeway system, it is the site of 27 percent of all I-70/I-71 freeway accidents in Franklin County.