Noise exposure level - all infrastructure (air, road, rail, industrial) - MEL

This data includes all noise emissions* for the infrastructures concerned (air, road, rail and industrial), and allows the creation of strategic noise maps*.

Strategic Noise Maps (CBS)

Noise maps help to assess and predict "the noise impact around certain infrastructures in certain agglomerations."

According to Cerema:

Strategic noise maps (CBS) are a tool for knowledge and monitoring of noise impacts related to certain infrastructures

• Roads and motorways (with annual traffic of more than 3 million vehicles) or

• railways (more than 30,000 train crossings per year), or recorded in certain agglomerations with more than 100,000 inhabitants.

For the MEL, this data feeds the strategic noise maps of the 3rd deadline.

A deadline is a review of the data that takes place every 5 years. As the first one was created in 2002, a revision is ongoing for 2023.

These informative maps are obtained by calculation (numerical models) and are based on data such as:

Internally:

• Traffic (throughput, speed, light and heavy vehicles, type of equipment)

• Topography,

• The nature of floor coverings,

• The nature of the tracks,

• The implementation of residential, non-residential buildings sensitive establishments

Outside:

• The ICPE

• Air traffic

• Conventional tracks (TER, freight)

Metadata available for strategic noise maps

Strategic noise maps

Noise exposure level - < 55 decibels - MEL

Noise Exposure Level - Cumulative Noise Types - MEL

Noise exposure level - all infrastructure (air, road, rail, industrial) - MEL

Diagnosis PPBE (Plan for the Prevention of Noise in the Environment): noise maps are used to develop the prevention plan

Areas of Concern - Diagnosis PPBE - Environmental Noise Prevention Plan - MEL

Quiet Areas - Diagnosis PPBE - Environmental Noise Prevention Plan - MEL