(a)   Definitions. As used herein, the following terms shall have the meanings respectively ascribed to them:
      (1)   Trailer.  ATrailer" means any vehicle without motive power designed or used for carrying property or persons wholly on its own structure and for being drawn by a motor vehicle and includes any such vehicle when formed by or operated as a combination of a semitrailer and a vehicle of the dolly type such as that commonly known as a trailer dolly, except a house trailer.
      (2)   Semitrailer.  ASemitrailer" means any vehicle of the trailer type without motive power so designed or used with another and separate motor vehicle that in operation a part of its own weight or that of its load, or both, rests upon and is carried by such other vehicle furnishing the motive power for propelling itself and the vehicle referred to in this subsection and includes any vehicle of the dolly type, such as a trailer dolly, designed or used for the conversion of a semitrailer into a trailer.
      (3)   Owner.  AOwner" means any owner, tenant or person in charge.
   (b)   Parking in Zoning Districts Prohibited; Exceptions. The parking of trailers and semitrailers in any zoning district is hereby prohibited subject to the following conditions:
      (1)   Parking on vacant lots. No trailers or semitrailers are permitted to be parked on residential or nonresidential lots or vacant lots within the City unless it is intended for the purposes of unloading or loading them at such location or a location contiguous thereto within a twenty-four hour period next ensuing and permission has been granted by the owner of the lot for such purpose. However, when the trailer is left at a nonresidential lot for the purpose of loading or unloading on a day prior to a weekend or holiday the twenty-four hour period shall not include the nonscheduled work day of such weekend or holiday period. The failure of a person to have written permission of the owner for the specific purpose shall be considered prima-facie evidence of the absence of permission and a violation of this section.
      (2)   Parking for loading and unloading purposes generally. Trailers or semitrailers that are loading or unloading in nonresidential areas are not permitted to stand or remain on private property where the loading or unloading operation is to be performed for a period of time longer than twenty-four hours subject to the exception of subsection (b)(1). Trailers or semitrailers that are to be loaded or unloaded in a residential area are prohibited from parking or remaining standing for a period of exceeding four hours or the period of time it reasonably takes to load or unload without interruption, whichever is less.
      (3)   Parking for storage and/or sale of merchandise. Trailers or semitrailers which are parked with or without a current license for use as storage space for merchandise for sale, materials held for the use in construction or the storage of equipment are not permitted except upon application for a special permit to be obtained from the Director of Public Safety not to exceed a period of fifteen days in nonresidential areas and not to exceed a period of ninety days where such vehicle is being used for construction purposes. This ninety-day permit may be extended only with an additional special permit to be obtained from the Director of Public Service for a period of time not to exceed an additional ninety-day period. Successive periods shall not be granted beyond the date of the Chief Building Inspector granting an occupancy permit.
      (4)   Parking in industrial districts. In industrial zoning districts, I-1 and I-2, empty trailers or semitrailers may be parked on private property only for the purpose of the storage of the empty trailer or semitrailer and not for the purpose of storage of any equipment, tools, goods or other items.
         (Ord. 87-71. Passed 10-19-71.)