Wider continuous white line on the carriageway

A **continuous longitudinal line** painted on the carriageway and **wider than normal** has special **separation and safety** functions:

- **Separates carriageways at bifurcations and merges**
It serves to clearly divide the different carriageways when a road **bifurcates** (splits into two) or when several carriageways **merge** (come together).

- **Separates special lanes or speed-change areas**
It is used to separate:
- a **speed-change lane or taper** (acceleration or deceleration),
- a **weaving lane** (where vehicles cross paths when entering and leaving),
- or a **special lane** for certain vehicles (for example, **buses, taxis**, etc.),
from the **adjacent basic lanes**, when, for **safety or functional reasons**, **lane changes must not be allowed** on that stretch.

In these cases, the **greater width of the continuous line** indicates more clearly that **the lane-change manoeuvre across it is not permitted**.