CDG Express: Communication tool between constructiion sites and local residents

project

Declared a project of major public interest since 2008, the Charles-De-Gaulle (CDG) Express line will serve as the connection between Paris Gare de l’Est to the Charles de Gaulle Airport. 

It will relieve existing traffic (RER B and motorways) in order to serve more than 20% of the 76 million annual air passengers at Paris Charles de Gaulle airport.

But this means that until it is ready, the construction work is likely to be a nuisance to the local community.

Travaux ferroviaires pour le projet CDG Express à Paris, avec train en construction et infrastructur.

challenge

Complementing existing modes of transport, including the use of 75% of existing lanes on its route, the CDG Express will operate near residential areas until it is put into service in 2027. In addition, the many interconnections require the organization of the removal and reinstallation of the RER B tracks.

Communicating and informing residents of possible future nuisances is therefore essential.

Need: monitor sound levels.

Need: display recorded sound levels on an application available to residents.

the UBY Solution

Acoustic monitoring was deployed on site to monitor the noise level of the site 24 hours a day, in real time, and to feed the tool with objective data. Our monitoring platform uMonitor made it possible to easily establish a correlation between construction site noise and the origin of perceived noise pollution. 

Located in an area with several operational transport networks, we also deployed a communication tool with the local residents, uCom. This tool kept the neighbourhoods informed of the upcoming work, especially a forecast of the upcoming noise. It also gathered their nose complaints, which could be used to verify exceedances on-site by the project team. It was noted that often, the noise perceived from the construction site by the local community, came from off the site. 

As a result, the project is better accepted, reducing the number of complaints and appeasing relations with the operational team.

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