
What it means
The Spanish DGT sign R-109 belongs to the regulatory signs family (circular (red or blue)). It means: no entry a vehicles que transporten mercancias explosivas o inflamables. As with every sign in this family, the theory exam typically combines it with right-of-way, speed-limit or general-traffic-rule questions — so it pays to memorise both the visual and the context in which it appears.
- Category
- Regulatory signs
- Shape
- Circular (red or blue)
Practise DGT questions featuring this sign
Ten official questions about signs from the 2026 DGT bank, with an explanation after each. Free, no signup.
Other related signs

R-414
Carriageway para vehicles que transporten dangerous goods

R-415
Carriageway para vehicles que transporten productos contaminantes del agua

R-416
Carriageway para vehicles que transporten mercancias explosivas o inflamables

R-417
Uso compulsory del cinturon of seguridad

R-418
Via exclusiva para vehicles dotados of equipo of telepeaje operativo

R-500
Fin of prohibiciones

R-505
Fin of via reservada

R-506
Fin of speed minima