Roads closed to traffic

The Swiss and French authorities have jointly decided to close certain roads to cars for reasons of public safety:

- the Route de Meyrin/RD984 between the Mandement roundabout in Switzerland and the Saint-Genis-Pouilly roundabout in France

- the RD35 adjacent to CERN’s Prévessin site in France.

Diversions will be in place in both France and Switzerland and will be signposted.

If you require more information, please contact us at:


The Open Days organising committee apologises for any inconvenience caused by these traffic restrictions and hopes that you will make the most of these special days. 


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