New speed laws take effect January 1st
Most Illinois highways will increase their speed limits to 70 miles per hour next week.
That includes short stretches of I-55 and I-80 southwest of Joliet, I-57 south of Park Forest in Will county, and I-88 west of Aurora in Kane county. Also in Lake County, a stretch of I-94 between Waukegan and the Wisconsin border will also increase.
The law also includes a provision that allows police to charge drivers with excessive speeding for going more than 26 mph over the posted limit.