Where I live in the south of Germany nearly every residential area has these artificially narrowed roads and it works a lot better than putting up a incongruent

Where I live in the south of Germany nearly every residential area has these artificially narrowed roads and it works a lot better than putting up a incongruent signs ie 30 on a 50 looking road. It also can look pretty nice when they use flower beds and trees for the narrowing: http://www.ibfunk.de/ibfunk-wAssets/img/leistungen/verkehrsanlagen/strassen/verkehrsberuhigte-strasse-unlinen-2.jpg http://www.ibfunk.de/ibfunk-wAssets/img/leistungen/verkehrsa...