Road noise - Annual change in full-day and night-time noise indicators measured at several Parisian stations

Dataset showing the annual change in the road noise index measured by permanent Parisian noise stations:

These data specify the annual averages of the measurements made by Bruitparif during the day (Lden) and at night (Ln) for different types of stations installed in Paris.

Typology:

- Peripheral Bd,

- Urban boulevards,

- Circulated square,

- Quiet street,

- Street with soundproofing (follow-up of the LIFE cool & low noise asphalt project).

These data were determined using the CNOSSOS method.

** CNOSSOS Method** (Common NOise aSSessment methOdS)

The CNOSSOS method, taken over by European Directive 2015/996 of 19 May 2015, aims to provide a common noise assessment model for the various countries of Europe. It specifies in Annex II to the Directive the sound propagation algorithms applicable to road noise, industrial noise, rail noise and air traffic noise.

COMMISSION DIRECTIVE (EU) 2015/996 of 19 May 2015 establishing common methods for noise assessment pursuant to Directive 2002/49/EC of the European Parliament and of the Council

** Definition of indices**

• L den (level day evening night): European index characterising the noise of a transport infrastructure averaged over 24 hours, in dB(A) and 2 m on the façade. This indicator is calculated on the basis of the equivalent levels over the three periods (day, evening and night) weighted by giving a stronger weight to the noise produced in the evening (18-22h) (+ 5 dB(A)) and at night (22h-6h) (+10 dB(A)) to take into account the increased sensitivity of individuals to noise pollution during these two periods
• L n (level night): European index characterising the average noise of a transport infrastructure at night, from 22.00 to 6.00, in dB(A) and 2 m on the façade.

NB: a corrective term of ‘-3 dB’ applies to European indices so as not to consider the last reflection on the front.

** Definition of regulatory values**

National regulations: Decree No 2006-361 of 24 March 2006 and Decree of 4 April 2006 , relating to the drawing up of noise maps and plans for the prevention of environmental noise.

• Lden < 68 dB(A)
• Ln < 62 dB (A)

WHO Recommendations (2018): WHO Recommendation

• Lden < 53 dB(A)
• Ln < 45 dB (A)

** Information sources**

The data provider is noiseparif >> the rumor platform | Noiseparif

Link Paris.fr https://www.paris.fr/pages/noise-and-nuisances-sonores-162/