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NOISE EXPOSURE FORECAST [1 record]

Record 1 2016-12-21

English

Subject field(s)
  • Noise Pollution
  • Air Transport
DEF

A technique for predicting the subjective effect of aircraft noise on the average person, expressed in NEF units, and sometimes drawn on maps by lines connecting points of equal NEF value.

CONT

In order to describe the effect of aircraft noise near an airport more complicated measures have been created to allow not only for the noise of each event (takeoff and landing) but also for the number of aircraft movements and the time of day when each occurs. In the United States the noise exposure forecast (NEF) is widely used ...

OBS

The estimate is based on values assigned to a range of factors that are considered (for example, frequency of aircraft movements and their distribution by day and night, aircraft weights and flight profiles, etc.).

French

Domaine(s)
  • Pollution par le bruit
  • Transport aérien
CONT

Pour les aéroports où le bruit a été cartographié, la limite absolue de 35 d'indice de projection du bruit perçu (P.B.P.) doit être respectée, avec insonorisation spéciale entre 30 et 35.

OBS

Ambiance sonore produite par une succession d'opérations des aéronefs. Le paragraphe 5.2 se limite à décrire des méthodes de détermination de courbes d'égal niveau de bruit perçu pour un seul aéronef, en vol ou au sol. [...] il est intéressant de calculer un indice total de bruit résultant d'une série d'opérations analogues sur une période donnée [...]

OBS

prévision d'ambiance sonore : terme extrait du «Glossaire de l’environnement» et reproduit avec l’autorisation de l’Organisation de coopération et de développement économiques.

Spanish

Campo(s) temático(s)
  • Contaminación acústica
  • Transporte aéreo
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