Napoleon crossed the Alps here and also had problems. Here, the motorcycle won. The Grand San Bernardino Pass.
Just put out some square planters in the road, add pretty flowers, and make the cars go around; or stop for each other. This is Arnold Schwarzenegger's home town. The idea actually works. Economical, effective, pulchritudinous.
Here is Poland, telling you to slow down:
Here is Switzerland, telling you to slow down.
.Switzerland. Budget-friendly speed non-trap.
That fake one aimed at the bikers, at an Altdorf repair shop.