Understanding priority to the right in Europe with examples

[useless_SW]

Hi all,

I've done a fair few miles in continental Europe but there are some things I am looking to clarify surrounding priority to the right (right before left) to ensure I understand it. I've never come across a practical problem, but I'd rather know than not know in case I am doing something wrong. I've listed some examples below of stuff I am not 100% sure about, and I would like to hear how people think I should approach these situations.

Example 1

The first example is from here.

My interpretation is that 2 has priority over 1, at least in theory. That is because there is no markings or signs that would otherwise signify a yield for traffic from 2. Obviously 1 has to yield to oncoming traffic on the main same road. Who really has the priority?

Example 2

The second example is from here - a motorway service station.

This is a little more unclear to me. I interpret all of this to be a parking place, and therefore 2 would conventially take priority. However, traffic on 1 likely will be going faster and getting ready to match speed of the highway. In addition, it looks like there may be a yield sign for traffic from 2 based on the shadow cast. From memory, not all service station have a yield sign like this, so how should we deal with priority in such a case?

These questions may be silly and have obvious answers, but I'd rather understand it. In fact, it's even embarrassing asking.

Thanks in advance.