Chapter 1 General Provisions Part 2 Definitions
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Underground Space -The entire existing cavern resulting from the extraction of subsurface located material from underground areas in such a manner that the surface area of the property is not disturbed except in the vicinity of the entrances and easements serving the development.
Utility Trailer - A vehicle designed to be pulled by a motor vehicle which is used to carry property, trash, or special equipment. Utility trailers less than or equal to sixteen (16) feet in length shall be regulated as medium trucks. Utility trailers in excess of 16 feet in length shall be considered industrial vehicles and are regulated as heavy trucks. Utility trailers shall be measured excluding the tongue.

Uniformity Ratio -The relationship between the average level of illumination and the lowest level of illumination for a given area. For example, if the uniformity ratio is 3: 1 and the average illumination of an area is 3.0 footcandles, then the lowest level of illumination allowed in the given area would be 1.0 footcandles.
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Vadose Shaft - A vertical shaft extending from the ground surface to an underground area above the water table. A vadose shaft is found in areas with carbonate rock (limestone or dolomite) where groundwater has created a vertical cave (shaft) as it drops from one level to another.
Variance - see "Dimensional Variance."
Vehicle -Vehicles that have their own motive power and that are used for the transportation of people or goods on streets. Motor vehicle includes motorcycles, passenger vehicles, trucks, and recreational vehicles with motive power.
Vehicle, Disabled or Inoperable -Any vehicle which is physically or mechanically incapable of being, or legally not permitted to be, operated on the public streets.
Vehicle, Passenger - A motor vehicle designed to carry ten (10) persons or less including the driver. Passenger vehicle also includes motor vehicles designed to carry ten (10) persons or less that are constructed either on a truck chassis or with special features for occasional off-road use. Passenger vehicle includes vehicles commonly called cars, minivans, passenger vans, sports utility vehicles (SUVs) and jeeps. Passenger vehicle is intended to cover the vehicles defined as passenger cars and multipurpose passenger vehicles by the National Highway Traffic Safety Administration.
Vehicle, Recreational - A vehicle with or without motive power, which is designed for sport or recreational use, or which is designed for human occupancy on an intermittent basis. Recreational vehicle is divided into two categories as follows:
Vehicle Sales and Rental - The use of any building, land area or other premises for the display, sale and/ or rental of new or used vehicles, and including any warranty repair work or other repair service conducted as an accessory use.
Vehicular Use Area -A vehicular use are (VUA) is any open or unenclosed area containing more than 1,800 sq. ft. of area or more used by five or more of any type of vehicle, whether moving or at rest, including, but not limited to, parking lots, loading and unloading areas, mobile home parks, and vehicle sales and service areas. Driveways may be considered to be VUAs depending on their impact on adjacent residential uses or zones.
Verge -A strip or border with grass or landscaping that separates the sidewalk from the street.
Veterinary Clinic -A service use primarily engaged in providing medical care for animals, operated by a licensed veterinarian, and not offering facilities for the overnight care of animals except in connection with medical treatment. Any use providing facilities for the overnight boarding of animals or providing outside pens shall be classified as a kennel.
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Warehouse Showroom -A warehouse which includes the display of merchandise and may provide retailing incidental to and accessory to the principal warehouse use. Warehouse showroom does not include any retailing as a principal use.
Warehousing (or Storage Facility) -Any premises where the principal use is the storage of goods and materials. This term includes personal storage facilities.
Watershed -All the area within a geographic boundary from which water, sediments and other transportable materials, and dissolved materials drain or are carried by water to a common outlet, such as a point on a larger stream, lake, or underlying aquifer.
Watershed Master Plan -The Plan adopted by the Board of the administering agency which depicts critical hydrologic and flood management elements of a watershed such as local regulatory floodplain and local regulatory conveyance zones and is supported by maps, graphics, text, models, and capital improvements planned by the administering agency.
Wetland -Areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas.
Wheel Stops or Curbs -Permanently secured, durable devices no less than four inches in height, designed to restrict vehicular encroachment.
Wooded Areas - An area of contiguous vegetation where trees are at such a density that branches and leaves form a contiguous canopy.
Woodland Protection Area (WPA) Vegetated portions of a development site designated at the time of the approval process to be permanently protected (through the use of deed restrictions) either in a natural state or following selective removal of under story, brush and /or trees as specified at time of plan approval.
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Yard - An open space, other than a court, on the same lot with a building, unoccupied and unobstructed from the ground upward.
Yard, Front -A yard extending across the front of a lot, between the side lot lines, and being the minimum horizontal distance between the street right-of-way line and the principal building or any projections thereof other than the projections of uncovered steps, uncovered balconies or uncovered porches. On corner lots the front yard shall be considered as parallel to the street on which the lot has its least dimension.
Yard, Rear -A yard extending across the rear of a lot, between the side lot lines, and being the minimum horizontal distance between the rear of the principal building or any projections thereof other than the projections of uncovered steps, uncovered balconies or uncovered porches, to the rear lot line. On all corner lots the rear yard shall be at the opposite end of the lot from the front yard.
Yard, Side -An open unoccupied space on the same lot with a main building, situated between the side line of the building and the adjacent side line of the lot and extending from the rear line of the front yard to the front line of the rear yard.
Yard, Street Side -A yard extending across the side of a corner lot between the rear line of the front yard and front line of the rear yard, and between the principal building and the street right-of-way line, and being the minimum horizontal distance between the principal building or any projections thereof other than the projections of uncovered steps, uncovered balconies or uncovered porches, to the right-of-way line.
Zero-Lot-Line Development -Any residential development in which the required side or rear yards, or both, are eliminated to permit more efficient and effective siting and orientation of homes and private open spaces on the lot.
Zoning District - Any area within Jefferson County delineated on the Zoning District Map to which a set of regulations governing permitted land use, density and intensity of development applies.
Zoning District Map - The map setting forth the boundaries of the zoning and form districts of all of Jefferson County, Kentucky.