The announcement of the reconfinement causes many traffic jams on the roads of Île-de-France.
In any case, this is shown by the real-time traffic site Sytadin.
According to this site, there were 412 kilometers of traffic jams at 3:35 p.m.
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There were 412 kilometers of traffic jams in Île-de-France at 3:35 p.m. Sytadin (screenshot)
This figure is well above the usual average.
Traffic jams in Île-de-France exceeded 400 kilometers around 3:30 p.m. Sytadin (screenshot)
Exodus of Ile-de-France residents to the province?
Hasty return of holidaymakers to Île-de-France following the announcement of the reconfinement?
The Sytadin site, if one relies on the travel times, seems to show that the roads going from the province to Paris are more congested than the roads going from Paris to the province.
Travel time on the province - Paris and Paris - Sytadin province roads (screenshot)