(625 ILCS 5/11-209.1) (from Ch. 95 1/2, par. 11-209.1)
    Sec. 11-209.1. Powers of local authorities - enforcing the provisions of this Code on private streets and roads. (a) Any person or board of directors owning, operating or representing a residential subdivision, development, apartment house or apartment project; containing a minimum of 10 apartments or single family residences may file a written request, with the appropriate local authority wherein such property is situated, requesting their law enforcement agency enforce the provisions of this Code on all private streets or roads open to or used by the tenants, owners, employees or the public for the purposes of vehicular traffic by permission of such person or board of directors and not as a matter of public right. Notwithstanding Section 1-126 and Section 1-201 of this Code, if the local authority grants such request by the adoption of an enabling ordinance then all such private streets or roads shall be considered "highways" only for the enforcement purposes of this Code.
    (b) All regulations adopted and traffic control devices employed by a local authority in the enforcement of this Code on such streets or roads within any private area, pursuant to this Section, shall be consistent with the provisions of this Code and shall conform to the Illinois Manual on Uniform Traffic Control Devices.
    A local authority may require that any person who files a request for the installation of traffic signs pay for the cost of such traffic signs. Such traffic signs shall be in conformity with Section 11-604 of this Code.
    (c) Any person or board of directors which has filed such a request under this Section, may rescind that request by filing with the appropriate local authority a written request for such rescission. Upon receipt of the written request, the local authority shall subsequently repeal the original enabling ordinance. Such repeal shall not take effect until the first day of January following any such action by the local authorities. However, no such rescission request may be filed within 12 months of the date of the original written request.
    (d) The filing of a written request or the adoption of the enabling ordinance under this Section in no way constitutes a dedication to public use of any street, road, driveway, trail, terrace, bridle path, parkway, parking area, or other roadway open to or used by vehicular traffic, nor does it prevent such person or board of directors, as owners of such property, from requiring additional regulations than those specified by the local authorities or otherwise regulating such use as may seem best to such person or board of directors as long as they do not conflict with the powers granted to local authorities under Section 11-208 of this Code.
    (e) This amendatory act of 1972 is not a prohibition upon the contractual and associational powers granted by Article VII, Section 10 of the Illinois Constitution.
(Source: P.A. 86-521.)