Most congested stretches of highway in Switzerland use dynamic speed limits based on traffic for that reason. https://www.astra.admin.ch/astra/de/home/themen/n

Most congested stretches of highway in Switzerland use dynamic speed limits based on traffic for that reason. https://www.astra.admin.ch/astra/de/home/themen/nationalstrassen/baustellen/nordostschweiz/abgeschlossene-projekte/verkehrsmanagement-der-infrastrukturfiliale-winterthur/projekt-im-ueberblick/geschwindigkeitsharmonisierung-und-gefahrenwarnung.html https://www.astra.admin.ch/astra/de/home/themen/nationalstra...