Convention on Road Sings and Signals
ANNEXES
Annex 1
ROAD SIGNS
Section H
ADDITIONAL PANELS
1. These panels shall have either a white or yellow ground and a black, dark blue or red rim, in which case the distance or length or symbol shall be inscribed in black or dark blue; or a black or dark blue ground and a white, yellow or red rim, in which case the distance or length or symbol shall be inscribed in white or yellow.
2. (a) Additional panels H, 1 show the distance from the sign to the beginning of the dangerous section of road or of the zone to which the regulation applies.
(b) Additional panels H, 2 show the length of the dangerous section of road or of the zone to which the regulation applies.
(c) Additional panels are placed under the signs. However, in the case of danger warning signs of model Ab, the information to be given on the additional panels may be inscribed on the lower part of the sign.
3. The additional panels H, 3 and H, 4 concerning parking prohibitions or restrictions are of models H, 3a; H, 3b and H, 3c and H, 4a; H, 4b and H, 4c respectively. (See: section C, para. 9 (c) of this annex).
4. Regulatory signs may be restricted to particular road users by displaying the symbol for their category. For example: H, 5a and H, 5b.
In cases where the regulatory sign is to be regarded as not applying to a certain category of road users this is indicated by the symbol for their category and by the term "except" in the language of the particular country. For example: H, 6. If necessary the symbol may be replaced by an inscription in that language.
5. To indicate parking space reserved for handicapped persons, panel H, 7 should be used with signs C, 18 or E, 14.
6. The additional panel H, 8 displays a diagram of the intersection in which broad strokes indicate priority roads and thin strokes indicate the roads on which signs B, 1 or B, 2 are set up.
7. To indicate that the section of road ahead is slippery because of ice or snow the additional panel H, 9 should be used.
NOTE APPROPRIATE TO THE WHOLE OF ANNEX I: In countries where traffic keeps to the left, signs and/or symbols shall be reversed as appropriate.