S-51a
What does the S-51a sign mean?
Lane reserved for specific vehicles
Meaning
A 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.
Sign details
- Official code
- S-51a
- 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-51 variants
These share the same base code and are easy to mix up — the difference is in the detail of the symbol.
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-52Lane endsOn a one-way carriageway with three lanes, the right-hand lane disappears and you must change lane.
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