Michigan Compiled Laws, Chapter 462. Railroads § 462.107

Sec. 107. (1) “High speed rail corridor” means any railroad line having been formally designated by the United States department of transportation as a high speed rail corridor.

(2) “Nonmotorized trail” means a public or privately owned or operated traveled way, the use of which is restricted to pedestrians or nonmotorized conveyances including, but not limited to, bicycles and horses.

(3) “Notice” means the written expression of the department's findings that certain conditions observed at a crossing are not in compliance with state law, and that these conditions must be corrected.

(4) “Order” means an administrative document, signed by the department director or his or her designee, that details certain findings of fact and, based on those findings, specifies certain work to be performed by railroads or other parties in compliance with law and specifies a time period within which the work is to be completed. An order is based upon the department's statutory authority to require the performance of that work.

(5) “Passive traffic control devices” means those types of traffic control devices, including signs, markings, and other devices, located at or in advance of grade crossings to indicate the presence of a crossing but which do not change aspect upon the approach or presence of a train.

(6) “Private crossing” means any at-grade intersection of a railroad with any traveled way not under the jurisdiction of a road authority.

(7) “Public street or highway” means any improved thoroughfare maintained by a road authority that has been dedicated and constructed in accordance with law.