Category A danger signs are triangular signs edged in red which warn road users of potential hazards ahead. These signs are generally placed 150 meters ahead of the hazard in built-up areas, and 300 meters outside built-up areas. Understanding them is essential for anticipating and adapting one’s driving.
Cat. A danger signs
Dangerous left turn
Signal indicating a dangerous left turn
Dangerous right turn
Signal indicating a dangerous right turn
Dangerous bend – Double bend
Double bend or succession of more than two bends, the first to the left
Dangerous bend – Double bend
Double bend or succession of more than two bends, the first to the right
Dangerous descent
Signal indicating a dangerous descent
Steep ascent
Signal indicating a steep climb
Roadway narrowing
Road narrowing on left and right
Narrowing on the left
Narrowing of the roadway on the left side
Narrowing to the right
Narrowing of the right-hand carriageway
Movable bridge
Signal indicating the presence of a movable bridge
Overflow onto a quay or bank
Signal indicating an exit onto a quay or bank
Cassis or speed bumps
Deformation of the roadway that buckles, it’s not a development. No speed limit, no stopping or parking ban, no overtaking ban.
Raised device(s)
Traffic calming (Berlin cushion or plateau). 30 km/h speed limit, no stopping, parking or overtaking.
Slippery road surface
Slippery road sign, with additional sign for ice or snow
Projection of gravel
Signal indicating a risk of stone chip projection
Rockfall
Signal indicating a risk of falling rocks
Crosswalk
Signal indicating a crosswalk
Places frequented by children
Signal indicating a place especially frequented by children
Passage for cyclists and mopeds
Passage for cyclists and two-wheeled moped riders, or place where such riders exit from a bicycle path onto the roadway.
Big game crossing
Signal indicating big game crossing area
Cattle crossing
Signal indicating a livestock crossing area
Work
Signal indicating track work
Traffic light signals
Signal indicating the presence of traffic lights
Low-flying aircraft
Signal indicating a low-flying area
Crosswind
Strong crosswind signal
Two-way traffic
Traffic allowed in both directions after a one-way section of roadway. This signal is placed in the immediate vicinity of the hazard, not 150 meters away.
Level crossing with gates
Signal indicating a level crossing protected by gates
Level crossing without barriers
Signal indicating a level crossing not protected by gates
Single-track level crossing
Signal placed in the immediate vicinity of a single-track level crossing, not 150 metres away
Multi-track level crossing
Signal placed in the immediate vicinity of a two- or multi-track level crossing, not 150 metres away
Railroad crossing
Crossing of the public highway by one or more railroads established on the roadway
Danger undefined
Danger not defined by a special symbol. An additional sign indicates the nature of the hazard
File
Signal indicating the presence of a line of vehicles
Knowing these danger signals is fundamental for every driver. They enable them to anticipate risky situations and adapt their speed and driving accordingly. Particular attention should be paid to these red triangular signs, which are the first level of warning on the road.
