EU-wide single regulation

I find it always significant when the EU finds rules and regulations for everything possible, but it does not manage to harmonise the wild growth of traffic regulations in Europe. On the contrary, there are new national regulations that are sometimes contradictory in individual countries every year. No one votes such a thing within the EU. The only thing the EU is concerned about is whether we do not need a general speed limit on BABs in D! Example: Slovenia: When reset, the warning indicator must be switched on. Austria: School buses that have switched on the warning signal system and red-yellow warning lights must not be passed. Belgium: It is mandatory to turn on the fog lamp at a view below 100 meters Czech R.: At winter time, the passing light (not only day running light) is also switched on during the day Finland: In the months of December, January and February winter tyres are mandatory (from he for example in Austria from 15.11 to 15.03) etc… Oh yes, and then there are the English with the left traffic Is there a plan for harmonizing the state of StVO’n to an EU-StVO? Here the EU could actually do something more useful than, for example, to take care of the radius of curvature of bananas…