Length limitPortugal
1. Length limit
A length limit is a restriction that prohibits vehicles or vehicle combinations longer than a specified maximum length from entering a road or area. The stated length normally includes the complete vehicle combination and any load where national rules specify this.
Length restrictions are commonly used where long vehicles cannot safely negotiate narrow streets, tight bends, bridges, tunnels or other constrained road layouts. Drivers whose vehicle exceeds the indicated limit must use another permitted route.
Why might a road have a vehicle-length restriction in Portugal?
A limit may protect tight bends, bridges or streets where a long combination cannot turn or pass safely, including around historic town centres and narrow bridges. Read the actual sign; a length prohibition is different from a general warning about a narrow road.
🔗 pgdlisboa.pt • Portugal, Código da Estrada — articles 7, 24; RST C3f, C5–C9
🔗 ansr.pt • ANSR official RST — corrected 2019 republication, sign descriptions and markings
Vehicles longer than indicated prohibited.
English • Traffic sign C7 • No vehicles or vehicle combinations longer than ... m. Access is prohibited to vehicles longer than the value shown.
Português • C7 • Trânsito proibido a veículos ou conjunto de veículos de comprimento superior a ... m. Indicação de acesso interdito a veículos cujo comprimento seja superior ao indicado no sinal.
Sources
🔗 Commons.wikimedia.org (Gigillo83 • CC BY-SA 4.0)
🔗 Diariodarepublica.pt • Regulamento de Sinalização do Trânsito • artigo 24.º • C7
🔗 Ansr.pt • Republicação oficial retificada • C7 • página 14
Replacement SVG: Commons.wikimedia.org • Wikimedia Commons original • F l a n k e r • Public domain • Original revision 2023-10-01. Wikimedia original unmodified.
Artwork verified against Ansr.pt • official published diagram C7.
Image via Commons.wikimedia.org
F l a n k e r • Public domain • Source revision 2023-10-01. Wikimedia original unmodified.
Is a trailer included in the signed length restriction in Portugal?
Where the sign restricts the length of a vehicle combination, measure the complete combination rather than just the towing vehicle. Any protruding load may also matter under the local legal measurement rules. Check the wording and vehicle class covered by the sign.
🔗 pgdlisboa.pt • Portugal, Código da Estrada — articles 7, 24; RST C3f, C5–C9
🔗 ansr.pt • ANSR official RST — corrected 2019 republication, sign descriptions and markings
What if your vehicle combination exceeds a signed length limit in Portugal?
Choose another permitted route before entering the restricted section. Do not assume a wide carriageway is suitable: long vehicles need room for their swept path, particularly at sharp bends, junctions and roundabouts.
🔗 pgdlisboa.pt • Portugal, Código da Estrada — articles 7, 24; RST C3f, C5–C9
🔗 ansr.pt • ANSR official RST — corrected 2019 republication, sign descriptions and markings

Traffic rules
Portugal