As used in this act:

(a) “Public agency” means and includes the department of transportation, the Kansas turnpike authority, a county, city and township.

(b) “Motor vehicle” means every vehicle or tractor trailer combination that is self-propelled by which any person or property is or may be transported or drawn upon a highway except vehicles used exclusively upon stationary rails or tracks.

(c) “Highway” means the entire width between the boundary lines of every way publicly maintained when any part thereof is open to the use of the public for the purposes of vehicular travel.

(d) “Law enforcement officer” means and includes the Kansas highway patrol, police and sheriffs who are vested with the power and authority of peace, police and law enforcement, or those authorized to direct or regulate traffic or to make arrests for violations of traffic regulations.

(e) “Person” means the same as defined in Kan. Stat. Ann. § 8-1447, and amendments thereto.