Definitions. Unless specifically defined below, words and phrases
used in this section pertain to airport hazards, have the same meaning
as they have in common usage and give this section its most reasonable
application.
AIRPORT
The Westerly State Airport located at Post Road and Airport
Road and near Tom Harvey Road.
AIRPORT HAZARD
Any electronic transmission device or structure, which, as
determined by the Federal Aviation Administration, interferes with
radio communication between airport and aircraft approaching or leaving
the airport, or any structure or tree or use of land which obstructs
the airspace required for the flight of aircraft in landing or taking
off at any airport or is otherwise hazardous to the landing or taking
off of aircraft.
AIRPORT HAZARD AREA
Any area of land or water upon which an airport hazard might
be established if not prevented as provided in this chapter and in
accordance with Title 1, Chapter 3 of the RI General Laws and the
Federal Aviation Act.
AIRSPACE
The space lying above the earth or above a certain area of
land or water that is necessary to conduct aviation operations.
BOARD OF APPEALS
The previously established Zoning Board of the Town of Westerly,
pursuant to RIGL 1-3-19, shall be the Airport Area Overlay District
Board of Appeals to hear and decide all variances and all appeals
from any order, requirement, decision, or determination made in the
enforcement of this section.
CONFLICTION AREAS
Those areas identified within the Airport Area Overlay District
where ground elevation plus the maximum height restriction under current
zoning (i.e., 35 feet above grade) is within the FAR Part 77 approach
surface and conflicts with the regulated imaginary surfaces.
FAA 7460-1 AIRSPACE ANALYSIS
An analysis performed by the FAA upon submission of an FAA
7460-1 (Notice of Proposed Construction or Alteration) form. This
analysis, performed pursuant to FAR Part 77, Objects Affecting Navigable
Airspace, concerns the effect of proposed construction or alteration
on the use of air navigation facilities or navigable airspace by aircraft.
The conclusion of each study is normally a determination as to whether
the specific proposal studied would be a hazard to air navigation
and/or a determination for marking and/or lighting.
IMAGINARY SURFACE
That surface established with relation to the airport and
to each runway by the FAA. The size of each imaginary surface is based
on the category of each runway according to the type of approach available
for that runway. The slope and dimensions of the surface applied to
each end of a runway are determined by the most precise approach procedure
existing for that runway end.
OBSTRUCTION
Any object of natural growth, terrain, or permanent or temporary
construction or alteration, including equipment or materials used
therein, the height of which exceed the standards established in Subpart
C of Federal Aviation Regulations Part 77, Objects Affecting Navigable
Airspace.
PART 77 SURFACES
Imaginary airspace surfaces established with relation to
each runway of an airport.
STRUCTURE
For the purposes of only this section, any object constructed
or installed by humans, excluding trees and vegetation, including,
but without limitation, buildings, towers, smokestacks, and overhead
transmission lines, including the poles or other structures supporting
the same.
VARIANCE
For the purposes of this section, a variance is permission granted by the Board Of Appeals to depart from the literal requirements of this section in the establishment or maintenance of a use of land that is prohibited in the AA, including, without limitation, erecting any structures, increasing the height of any structure, permitting the growth of any tree, or otherwise using his or her property in violation of this section. The standards for a variance shall be those set forth in Subsection
H herein, and are based on RIGL 1-3-15 and are different from the definition and standards used in all other sections of this chapter, which are based on RIGL 45-24-31(66) and 45-24-41.