Traffic signsBelgium
Additional signs
An additional sign is a traffic sign placed directly below another sign to provide extra information or clarify how the main sign should be understood. It can specify conditions such as distance, time periods, road users affected, directions, or special circumstances. Additional signs do not create new rules by themselves but modify, limit, or explain the meaning of the sign above them so drivers can apply the rule correctly in that specific situation.
What does a Belgian supplementary panel do?
It can supplement, clarify or limit the sign’s meaning.
🔗 wegcode.be • Belgian current Road Code65 — six sign categories and supplementary panels
51. On the days shown
This supplementary sign indicates that the main traffic sign applies on the days shown.
English • Supplementary plate used with signs E1, E3 and E9-series signs to indicate a period.
Français • Panonceau utilisé avec les signaux E1, E3 et ceux de la série E9 pour indiquer une période.
Nederlands • Onderbord gebruikt samen met E1, E3 en de E9-reeks dat een periode aanduidt.
52. School street
This supplementary sign indicates that the main traffic sign applies to a school street.
53. Emergency telephone and fire extinguisher
This supplementary sign indicates that the facility or emergency stopping place shown by the main traffic sign is equipped with an emergency telephone and a fire extinguisher.
54. Queues
This supplementary sign warns that queues or slow-moving traffic may be encountered ahead.
55. Reminder
This supplementary sign indicates that the main traffic sign repeats a rule or restriction already in force.
English • Supplementary plate used with sign C43 to repeat a prohibition.
Français • Panonceau utilisé avec le signal C43 pour répéter une interdiction.
Nederlands • Onderbord gebruikt samen met C43 om een verbod te herhalen.
56. Damaged roadway
This supplementary sign warns of a damaged or uneven road surface.
English • Supplementary plate used with sign A51 to indicate the nature of the danger. Other possible inscriptions include ruts, fog, soft shoulder and quarry.
Français • Panonceau utilisé avec le signal A51 pour indiquer la nature du danger. D'autres mentions possibles sont ornières, brouillard, accotement meuble, carrière, etc.
Nederlands • Onderbord gebruikt samen met A51 om de aard van het gevaar aan te duiden. Andere mogelijke opschriften zijn spoorvorming, mist, zachte berm, steengroeve, ...
57. Grooves
This supplementary sign warns of grooves or ridges in the road surface that may affect vehicle handling.
58. Soft verge
This supplementary sign warns that the verge beside the roadway is soft or unstable.
59. Ruts
This supplementary sign warns of ruts or longitudinal depressions in the road surface.
60. Fog
This supplementary sign warns that fog may reduce visibility on the road section ahead.
61. Ice
This supplementary sign warns that the road surface may be icy.
English • Supplementary plate used with sign A15 to indicate the circumstances in which the road is slippery.
Français • Panonceau utilisé avec le signal A15 pour indiquer dans quelles circonstances la chaussée est glissante.
Nederlands • Onderbord gebruikt samen met A15 om te duiden in welke omstandigheden de weg glibberig is.
62. Aquaplaning
This supplementary sign warns of a risk of aquaplaning, where tyres lose contact with the road surface because of water.
63. Wet
This supplementary sign warns that the road surface may be wet and slippery.
64. Truck exit
This supplementary sign warns of an exit used by trucks or other heavy vehicles.
65. Industrial area
This supplementary sign indicates that the main traffic sign applies in or near an industrial area.
66. Tunnel category B
This supplementary sign indicates that the main traffic sign applies to vehicles carrying dangerous goods for which access to category B road tunnels is prohibited under ADR.
67. Tunnel category C
This supplementary sign indicates that the main traffic sign applies to vehicles carrying dangerous goods for which access to category C road tunnels is prohibited under ADR.
68. Tunnel category D
This supplementary sign indicates that the main traffic sign applies to vehicles carrying dangerous goods for which access to category D road tunnels is prohibited under ADR.
69. Tunnel category E
This supplementary sign indicates that the main traffic sign applies to vehicles carrying dangerous goods for which access to category E road tunnels is prohibited under ADR.

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Belgium
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Additional signs