Arlington Municipal Airport Development Plan Arlington Airport Development Plan | Page 223
LIGHT EMISSIONS AND VISUAL IMPACTS
Airport lighting is characterized as either airfield lighting (i.e., runway, taxiway, approach and landing
lights) or landside lighting (i.e., security lights, building interior lighting, parking lights, and signage).
Generally, airport lighting does not result in significant impacts unless a high intensity strobe light, such
as a runway end identification light (REIL), would produce glare on any adjoining site, particularly resi‐
dential uses.
Visual impacts relate to the extent that the proposed development contrasts with the existing envi‐
ronment and whether a jurisdictional agency considers this contrast objectionable. The visual sight of
aircraft, aircraft contrails, or aircraft lights at night, particularly at a distance that is not normally intru‐
sive, should not be assumed to constitute an adverse impact.
Lighting changes would occur with the Runway 16‐34 extension project and would extend the existing
lighting systems to the north toward U.S. Interstate 20. Additional security lighting may also be added
during the construction of new hangar facilities on the east and west sides of the Airport. This may re‐
sult in changes to lighting near existing residential areas.
If the potential for lighting or visual impacts is determined to be associated with the planned develop‐
ment, consultation with local residents and the owners of light‐sensitive sites may be needed to de‐
termine possible alternatives to minimize these effects without risking aviation safety or efficiency.
Measures such as shielding guidance lighting so that they are only visible to pilots or using vegetative
buffers could be used to reduce the effects of airport‐related light emissions. Additional coordination
with state, regional, or local art or architecture councils, tribes, or other organizations having an inter‐
est in airport‐associated visual effects may be necessary.
NOISE
Per federal regulation, the DNL is used in this study to assess aircraft noise. DNL is the metric currently
accepted by the FAA, EPA, and Department of Housing and Urban Development (HUD) as an appropri‐
ate measure of cumulative noise exposure. These three agencies have each identified the 65 DNL
noise contour as the threshold of incompatibility. Noise exposure contours are overlaid on maps of
existing and planned land uses to determine areas that may be affected by aircraft noise at or above 65
DNL. The noise exposure contours are developed using the FAA‐approved Airport Environmental De‐
sign Tool (AEDT) which accepts inputs for several airport characteristics, including: aircraft type, opera‐
tions, flight tracks, time of day, and topography.
Exhibit 5E depicts the existing (2014) condition noise exposure contours for the Airport. As shown on
the exhibit, the 65 DNL noise contour extends beyond the northeast and northwest sides of airport
property over light industrial and commercial land uses as well as undeveloped property. The 65 DNL
also extends beyond the south end of airport property over undeveloped areas owned by the City of
Arlington and utilized as a linear park.
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