§ 70.01 SPEED LIMITATIONS.
   (A)   The basic statutory vehicular speed limits established by § 11-601 of the State Vehicle Code, being 625 ILCS 5/11-601, are greater, or less, than that considered reasonable and proper on the street or highway listed in Chapter 72, Schedule I for which the county has maintenance responsibility and which is not under the jurisdiction of the State Department of Transportation.
   (B)   The Board has caused to be made an engineering and traffic investigation upon the streets or highways listed in the schedule.
   (C)   By virtue of 625 ILCS 5/11-604 of the above Code and subject to approval by the Department, the Board determines and declares that reasonable and proper absolute maximum speed limits upon those streets and highways described in Chapter 72, Schedule I shall be as stated therein.
   (D)   By virtue of 625 ILCS 5/11-604 of the above Code, the Department is hereby requested to review the supporting data and findings of the engineering and traffic investigation submitted and filed in duplicate for each proposed speed zone of the street or highway described in Chapter 72, Schedule I.
   (E)   When the Board is advised that the Department has approved the proposed maximum speed limits for the zone or zones of the street or highway described in Chapter 72, Schedule I, signs giving notice thereof shall be erected in conformance with the standards and specifications contained in the Illinois Manual of Uniform Traffic Control Devices for Streets and Highways.
   (F)   This section shall take effect immediately after the erection of the signs giving notice of the maximum speed limits.
(Ord. O-19-2-89, passed 2-14-1989; Ord. O-20-2-89, passed 2-14-1989) Penalty, see § 10.99