909.01 DEFINITIONS.
   As used in this chapter:
   (a)   "Unimproved street" means a street without any surface improvement.
   (b)    “Improved street” means a street with an added surface by stabilization such as asphalt, soil, cement, oil or any bituminous application.
   (c)    "Paved street" means a street surface laid on concrete, sand, crushed slag or gravel, or a street constructed of sheet asphalt, asphaltic concrete or resurface of sheet asphalt or asphaltic concrete over brick or a street of entire concrete construction. (1964 Code §519.50)