S-63b
What does the S-63b sign mean?
Fork on a three-lane carriageway
Meaning
On a carriageway with three lanes in the same direction, the middle lane splits and the four resulting lanes divide, two to the left and two to the right.
Sign details
- Official code
- S-63b
- Group
- Lane signs
- Catalogue section
- 3.9
- How to recognise it
- A rectangular sign with a blue ground showing the lane layout and its arrows in white.
Source: Reglamento General de Circulación — Anexo I, apartado 5: Catálogo oficial de señales de la circulación y marcas viales (Catálogo de señales verticales, tomo I) · Anexo I, apartado 5 (Catálogo de señales verticales de circulación, tomo I)
S-63 variants
These share the same base code and are easy to mix up — the difference is in the detail of the symbol.
S-63aFork on a four-lane carriagewayOn a carriageway with four lanes in the same direction, the road forks with two lanes going left and two going right.
S-63cTwo left lanes fork off, four-lane carriagewayOn a carriageway with four lanes in the same direction, the two left-hand lanes fork off in another direction.
S-63dTwo right lanes fork off, four-lane carriagewayOn a carriageway with four lanes in the same direction, the two right-hand lanes fork off in another direction.
Other signs in this group
S-50aLanes reserved by signed speedOn a two-way carriageway, an extra lane opens on the left that may only be used by vehicles travelling at or above the speed shown — though where conditions allow they should keep to the right.
S-50bLanes reserved by signed speedOn a two-way carriageway, an extra lane opens on the right. The lane under the minimum-speed sign may only be used by vehicles travelling at or above the speed shown.
S-50cLanes reserved by signed speedOn a one-way carriageway, an extra lane opens on the right. The lanes under the minimum-speed sign may only be used by vehicles travelling at or above the speed shown.
S-50dLanes reserved by signed speedOn a two-way carriageway, the lane under the minimum-speed sign may only be used by vehicles travelling at or above the speed shown.
S-50eLanes reserved by signed speedOn a one-way carriageway, the lanes under the minimum-speed signs may only be used by vehicles travelling at or above the speed shown.
S-51aLane reserved for specific vehiclesA lane for the exclusive use of one or more particular vehicle types — buses, motorcycles, three-wheelers treated as motorcycles, taxis, cycles and so on. The sign carries their pictogram.
Get the app
Start on your phone
Everything above lives in the app for iPhone and Android. Free to start — no card needed.
ViaReady
Spanish driving theory, in your language
Available for iOS 15+ and Android 8+.