65 ILCS 5/7-1-5.3
When a developer petitions a municipality to annex property for a planned unit development of residential, commercial, or industrial sub-divisions that is located adjacent to a former railroad right-of-way that has been converted to a recreational trail ("rail-trail") that is owned by the State, a unit of local government, or a non-profit organization, the municipality shall notify the State, unit of local government, or non-profit organization and furnish the proposed development plans to the State, unit of local government, or non-profit organization for review. The municipality shall require the developer petitioning for annexation to reasonably accommodate the rail-trail and modify its proposed development plans to ensure against adverse impacts to the users of the rail-trail or the natural and built resources within the right-of-way. If the municipality does not require the developer to make a modification prior to annexation, the municipality shall provide a written explanation to the State, unit of local government, or non-profit organization owning the rail-trail. The intent of this review and planning process is to ensure that no development along a rail-trail negatively affects the safety of users or the natural and built resources within the right-of-way.
65 ILCS 5/7-1-5.3