From Germany via Austria to Switzerland, are there any signs on the highway indicating that you are about to enter Austria and Switzerland? How can you tell when you are approaching Austria and Switzerland ?

There are always signs for Austrian highway tickets at the rest stops when approaching Austria.

In addition to maps, there are several other ways to distinguish. 1. If you look carefully, there will be border signs on the roadside. 2. The names of the roads on the map will change. This is my own summary, and it needs to be confirmed by experts. Personally, I understand that although there is the EU, the naming of roads is still the responsibility of each country, and there is no need to be consistent with neighboring countries. 3. The dumbest way is that domestic mobile operators will send you messages, welcoming you to a certain country, and then there will be a lot of important information prompts. Of course, this must be when your phone has international roaming and is in a place where there is signal for entering and leaving the country. Also, this method is not very accurate. I received the message 5 minutes earlier than my travel companions, and in 5 minutes, we had already traveled several kilometers on the highway.

Actually, do your homework in advance and mark the nearest gas station on Google Maps as a stopover. You have to stop to buy the toll anyway.

Google Maps