At this time of year nearly every Frenchman travels south on his holidays, and I traveled west and unfortunately we met up at Lyon. The announced delay was 20 minutes, but of course, avoiding the delay took much longer!
The wicked French decided to
close a major road for repair work on the tunnels of the
Boulevard Périphérique Nord from 15th July to 29th August.
Traveling there my TomTom took a diversion, but on the return journey, yesterday lunchtime, the TomTom radio receiver did not find the local radio signal, so there was no digital update on traffic conditions. Later the radio signal was working again.
I checked today on Google Maps, and there is no mention of this closure. There is a good autoroute diversion to the north of Lyon, I do suggest you avoid this part of Lyon!
http://www.peripheriquenord.com/ https://www.google.ch/maps/dir/Ville...d45.781828!3e0