Building law Rhineland-Palatinate privacy wall towards the street

Hello everyone,

I live in Rhineland-Palatinate. The development plan does not provide any indications of restrictions, and basically, I am allowed to build a privacy wall with a height of 2 meters on the property boundary in my federal state. But how does it work if the privacy wall is on a sidewalk or directly on a street? Are there any different regulations here? I haven't been able to find anything so far. Thanks, regards