The sign "Tourist route with a reference destination" is designed to guide drivers to attractions or points of interest that are appealing to tourists. This sign typically features a pictogram of a famous landmark or destination, indicating that there is a designated route to follow for easier access to these sites.

The primary purpose of this sign is to enhance tourism by helping visitors navigate to locations that may not be well known or directly accessible via regular road signage. Drivers should be aware that following these routes can lead to scenic views or cultural landmarks, but they should also maintain caution as these routes may involve roads with different traffic conditions.

In summary, this sign helps in promoting tourism and facilitating access to significant destinations but requires drivers to be attentive and drive safely while following these routes. If you have further questions about traffic rules or any specific scenarios, feel free to ask!