70 ILCS 810/11

The board of any forest preserve district may by ordinance regulate and control the speed of travel on all paths, driveways and roadways within forest preserves, and prohibit the use of such paths, driveways and roadways for racing or speeding purposes, and may exclude therefrom traffic, teams and vehicles, and may by ordinance prescribe such fines and penalties for the violation of their ordinances as cities and villages are allowed to prescribe for the violation of their ordinances.