As used in this chapter, the following terms shall have the meanings indicated:
Any real property within the city which is not a street or highway.
The entire width between the boundary lines of every way maintained, when any part thereof is open to the use of the public for purposes of vehicular travel.
A machine propelled by other than human power, designed to travel along the ground by use of wheels, treads, runners or slides and to transport persons or property or pull machinery, including, but not by way of limitation, an automobile, truck, trailer, motorcycle, tractor, buggy and wagon.