§ 71.001  SPEED LIMITS.
   (A)   No vehicle may be driven upon any highway of this state at a speed which is greater than is reasonable and proper with regard to traffic conditions and the use of the highway, or endangers the safety of any person or property. The fact that the speed of a vehicle does not exceed the applicable maximum speed limit does not relieve the driver from the duty to decrease speed when approaching and crossing an intersection, approaching and going around a curve, when approaching a hill crest, when traveling upon any narrow or winding roadway, or when special hazard exists with respect to pedestrians or other traffic or by reason of weather or highway conditions. Speed must be decreased as may be necessary to avoid colliding with any person or vehicle on or entering the highway in compliance with legal requirements and the duty of all persons to use due care.
   (B)   No person may drive a vehicle upon any highway of this state at a speed which is greater than the applicable statutory maximum speed limit established by divisions (C) through (G) of this section, by ILCS Ch. 625, Act 5, § 11-605 or by a regulation or ordinance made under this chapter.
   (C)   Unless some other speed restriction is established under this chapter, the maximum speed limit in an urban district and residential district within the city for all vehicles is:
      (1)   Twenty-five miles per hour, unless otherwise posted; and
      (2)   Fifteen miles per hour in an alley.
   (D)   Unless some other speed restriction is established under this chapter, the maximum speed limit outside an urban district for any vehicle is 65 miles per hour for all highways under the jurisdiction of the Illinois State Toll Highway Authority and for all or part of highways that are designated by the Department, have at least four lanes of traffic, and have a separation between the roadways moving in opposite directions and 55 miles per hour for all other highways, roads and streets.
   (E)   Unless some lesser speed restriction is established under this chapter, the maximum speed limit outside an urban district for a second division vehicle designed or used for the carrying of a gross weight of 8,001 pounds or more (including the weight of the vehicle and maximum load) is 55 miles per hour.
   (F)   Unless some other speed restriction is established under this chapter, the maximum speed limit outside an urban district for a bus is:
      (1)   Sixty-five miles per hour upon any highway which has at least four lanes of traffic and of which the roadways for traffic moving in opposite directions are separated by a strip of ground which is not surfaced or suitable for vehicular traffic, except that the maximum speed limit for a bus on all highways, roads, or streets not under the jurisdiction of the Department or the Illinois State Toll Highway Authority is 55 miles per hour; and
      (2)   Fifty-five miles per hour on any other highway.
(1999 Code, § 71.001)  (Ord. 3044, passed 2-20-2001)  Penalty, see § 71.999
Statutory reference:
   Authority to regulate speed, see ILCS Ch. 65, Act 5, § 11-40-1 and ILCS Ch. 625, Act 5, § 11-604
   Related provisions, see ILCS Ch. 625, Act 5, § 11-601