Terms used in chapters 32-14 to 32-19, inclusive, 32-12 and 32-22 to 32-34, inclusive, mean:

(1) “Alcoholic beverage,” as that term is defined by subdivision 35-1-1(1);

(2) “Authorized emergency vehicle,” a vehicle of a fire department, a police vehicle, an ambulance or emergency vehicle of a municipal department or public service corporation that is designated or authorized by the department or the Department of Health, and an emergency vehicle titled to a local organization for emergency management created pursuant to chapter 34-48A;

(3) “Automobile transporter,” a vehicle combination designed or modified to be used specifically for the transport of assembled highway vehicles;

(4) “Boat transporter,” a vehicle combination designed or modified to be used specifically for the transport of assembled or partially disassembled boats and boat hulls;

(5) “Business district,” the territory contiguous to a highway when fifty percent or more of the frontage thereon for a distance of three hundred feet or more is occupied by buildings in use for business;

(6) “Commission,” the Public Utilities Commission;

(7) “Controlled drug or substance,” as that term is defined in § 34-20B-3;

(8) “Crosswalk,” that part of a roadway at an intersection included within the connections of the lateral lines of the sidewalks on opposite sides of the highway measured from the curbs or, in the absence of curbs, from the edges of the traversable roadway; or any portion of a roadway at an intersection or elsewhere distinctly indicated for pedestrian crossing by lines or other markings on the surface;

(9) “Department,” the Department of Public Safety of this state acting directly or through its duly authorized officers and agents;

(9A) “Electric bicycle,” as that term is defined in § 32-20B-9;

(10) “Farm tractor,” a motor vehicle designed and used primarily as a farm implement for drawing plows, mowing machines, and other implements of husbandry;

(11) “Highway,” the entire width between the boundary lines of every way publicly maintained when any part thereof is open to the use of the public as a matter of right for purposes of vehicular travel;

(12) “Intersection,” the area embraced within the prolongation of the lateral curb lines or, if none, then of the lateral boundary lines of two or more highways which join one another at an angle, whether or not one such highway crosses the other. However, such area, in the case of the point where an alley and a street meet within a municipality, is not an intersection;

(13) “Law enforcement officer,” as that term is defined in § 23-3-27;

(14) “Local authorities,” a county, municipal, township, road district, and other local board or body having authority to adopt local police regulations under the Constitution and laws of this state;

(15) “Metal tires,” a tire the surface of which in contact with the highway is wholly or partly of metal or other hard, nonresilient material;

(16) “Motorcycle,” a motor vehicle designed to travel on not more than three wheels in contact with the ground, except any vehicle as may be included within the term, tractor;

(17) “Motor vehicle,” a vehicle that is self-propelled. The term does not include an electric bicycle;