(b-5) Subject to the provisions of subsection (b-10), as an alternative to the posting of real property as set forth in subsection (b), the owner or lessee of any real property may post the property by placing identifying purple marks on trees or posts around the area to be posted. Each purple mark shall be: (1) A vertical line of at least 8 inches in length and the bottom of the mark shall be no less than 3 feet nor more than 5 feet high. Such marks shall be placed no more than 100 feet apart and shall be readily visible to any person approaching the property; or(2) A post capped or otherwise marked on at least its top 2 inches. The bottom of the cap or mark shall be not less than 3 feet but not more than 5 feet 6 inches high. Posts so marked shall be placed not more than 36 feet apart and shall be readily visible to any person approaching the property. Prior to applying a cap or mark which is visible from both sides of a fence shared by different property owners or lessees, all such owners or lessees shall concur in the decision to post their own property. Nothing in this subsection (b-5) shall be construed to authorize the owner or lessee of any real property to place any purple marks on any tree or post or to install any post or fence if doing so would violate any applicable law, rule, ordinance, order, covenant, bylaw, declaration, regulation, restriction, contract, or instrument.
(i) Civil liability. A person may be liable in any civil action for money damages to the owner of the land he or she entered upon with a motor vehicle as prohibited under paragraph (4) of subsection (a) of this Section. A person may also be liable to the owner for court costs and reasonable attorney's fees. The measure of damages shall be: (i) the actual damages, but not less than $250, if the vehicle is operated in a nature preserve or registered area as defined in Sections 3.11 and 3.14 of the Illinois Natural Areas Preservation Act; (ii) twice the actual damages if the owner has previously notified the person to cease trespassing; or (iii) in any other case, the actual damages, but not less than $50. If the person operating the vehicle is under the age of 16, the owner of the vehicle and the parent or legal guardian of the minor are jointly and severally liable. For the purposes of this subsection (i): "Land" includes, but is not limited to, land used for crop land, fallow land, orchard, pasture, feed lot, timber land, prairie land, mine spoil nature preserves and registered areas. "Land" does not include driveways or private roadways upon which the owner allows the public to drive.
"Owner" means the person who has the right to possession of the land, including the owner, operator or tenant.
"Vehicle" has the same meaning as provided under Section 1-217 of the Illinois Vehicle Code.