Signs S-235a on motorways or dual carriageways

These signs indicate, on a **motorway or dual carriageway**, two main things:

1. **Direction of the main carriageway**
They show the **direction followed by the road you are driving on** (the main route).

2. **Information about the next exit**
They indicate:
- The **destinations** reached by taking the **next exit** or junction.
- The **distance** remaining to that exit.
- The **number** of the exit and, where applicable, the corresponding **letter**.

In summary, they are **advance direction signs** placed **above the carriageway** that help anticipate the upcoming exit and distinguish between the **main route** and the **exit routes**.