There may be industrial action (aka strikes) on the french railways. 

These are the days provisionally indicated around RIPE 76.

Mercredi 9 mai 2018

Dimanche 13 mai 2018

Lundi 14 mai 2018

Vendredi 18 mai 2018

Samedi 19 mai 2018

Mercredi 23 mai 2018

For more information see:

http://www.cestlagreve.fr/greve/sncf-avril-2018/#GbX2ozuhsSe4fZtQ.99

:-(

Gordon