[HIGHLIGHTS] Transport in Île-de-France: service improved in January, but “difficulties” persist on certain lines

Transport in Île-de-France: service improved in January, but “difficulties” persist on certain lines. As the Olympics approach, the organizing company ensures that “results” are “visible to travelers”.

Concerning trains, "all lines have satisfactory punctuality", even if lines P and R "present fragile results in January" and the Nanterre Université/Cergy le Haut axis of line L "has poor results"