If traffic at the intersection is regulated by a light signal, a sign Aa or Ab, bearing symbol A,17 described in paragraph 17 above may be set up to supplement or replace the signs described in paragraphs 18 to 21 above.

23. Two-way traffic

(a) Warning of a section of road temporarily or permanently carrying two-way traffic on the same carriageway when, on the previous section, traffic was carried on a one-way road or on a road comprising several one-way traffic carriageways, shall be given by the symbol A,23.

(b) The sign bearing this symbol shall be repeated at the beginning of the section and along the section as frequently as may be necessary.

24. Traffic congestion

(a) Warning that there may be traffic congestion on the section of road ahead shall be given by symbol A,24.

(b) The symbol may be reversed.

25. Level-crossings with gates

Warning of level-crossings with gates or staggered half-gates on either side of the railway line, shall be given by symbol A,25.

26. Other level-crossings

Warning of other level-crossings shall be given by symbol A,26a or A,26b, or by symbol A,27 as appropriate.

27. Intersection with a tramway line

To give warning of an intersection with a tramway line, unless such intersection is a level-crossing as defined in Article 1 of the Convention, symbol A,27 may be used.

NOTE - If it is considered necessary to give warning of intersections between a road and a railway track at which rail traffic proceeds very slowly and road traffic is regulated by a railwayman accompanying the railway vehicles and making the necessary hand signals, sign A,32 described in paragraph 32 below shall be used.

28. Signs to be placed in the immediate vicinity of level-crossings

(a) There are three models of sign A,28 referred to in Article 35, paragraph 2 of this Convention: A,28a; A,28b and A,28c.

(b) Models A,28a and A,28b shall have a white or yellow ground and a red or black border; model A,28c shall have a white or yellow ground and a black border; the inscription on model A,28c shall be in black letters. Model A,28b shall be used only if the railway line comprises at least two tracks; with model A,28c the additional panel shall be affixed only if the line comprises at least two tracks, in which case it shall indicate the number of tracks.

(c) The normal length of the arms of the cross shall be not less than 1.20 m. If sufficient space is not available, the sign may be placed with its points directed upwards and downwards.

29. Additional signs at approaches to level-crossings or swing bridges

(a) The panels mentioned in Article 9, paragraph 5 of this Convention are signs A,29a, A,29b and A,29c. The bars shall slope downwards towards the carriageway.

(b) The danger warning sign for the level-crossing or swing bridge may be placed above signs A,29b and A,29c in the same way as it shall be placed above sign A,29a.

30. Airfield

(a) Warning of a section of road likely to be flown over at low altitude by aircraft taking off from or landing on an airfield shall be given by symbol A,30.

(b) The symbol may be reversed.

31. Cross-wind

(a) Warning of a section of road on which there is often a strong cross-wind shall be given by symbol A,31.

(b) The symbol may be reversed.

32. Other dangers

(a) Warning of a section of road on which there is a danger other than those enumerated in paragraphs 1 to 31 above or in section B of this annex may be given by symbol A,32.

(b) It shall, however, be open to Contracting Parties to adopt graphic symbols in conformity with the provisions of Article 3, paragraph 1 (a) (ii) of this Convention.

(c) Sign A,32 may be used, in particular, to give warning of intersections with railway tracks at which rail traffic proceeds very slowly and road traffic is regulated by a railwayman accompanying the railway vehicles and making the necessary hand signals.

Section B

PRIORITY SIGNS

NOTE - At an intersection comprising a priority road in which there is a bend, an additional panel H,8 bearing a diagram of the intersection which shows the outline of the priority road may be placed below danger signs giving warning of the intersection or below priority signs, whether they are set up at the intersection or not.

1. „GIVE WAY” sign

(a) The „GIVE WAY” sign shall be sign B,1. It shall consist of an equilateral triangle having one side horizontal and the opposite vertex below it. The ground shall be white or yellow and the border red. The sign shall bear no symbol.

(b) The side of the normal sized sign shall measure approximately 0.90 m; the side of the small sign shall measure not less than 0.60 m.

2. „STOP” sign

(a) The „STOP” sign shall be sign B,2, of which there are two models:

(i) Model B,2a is octagonal with a red ground bearing the word „STOP” in white in English or in the language of the State concerned; the height of the word shall be not less than one third of the height of the panel;

(ii) Model B,2b is circular with a white or yellow ground and a yellow border; it bears within it sign B,1 without any inscription, and near the top, in large letters, the word „STOP” in black or dark blue, in English or in the language of the State concerned.

(b) The height of the normal sized sign B,2a and the diameter of the normal sized sign B,2b shall be approximately 0.90 m; the same dimensions of the small signs shall be not less than 0.60 m.

(c) As regards the choice between models B,2a and B,2b, see Article 5, paragraph 2, and Article 10, paragraph 3, of this Convention.

3. „PRIORITY ROAD” sign

(a) The „PRIORITY ROAD” sign shall be sign B,3. It shall consist of a square with one diagonal vertical. The rim of the sign shall be black; the sign shall have in its centre a yellow or orange square with a black rim; the space between the two squares shall be white.

(b) The side of the normal sized sign shall measure approximately 0.50 m; the side of the small sign shall measure not less than 0.35 m.

4. „END OF PRIORITY” sign

The „END OF PRIORITY” sign shall be sign B,4. It shall consist of sign B,3 above with the addition of a black or grey median band perpendicular to the lower left and upper right sides of the square, or of black or grey parallel lines forming such a band.

5. Sign indicating priority for oncoming traffic

(a) If, on a narrow section of road where passing is difficult or impossible, traffic is regulated and if, because drivers can see the whole length of the section clearly both at night and by day, such regulation is carried out by giving priority to traffic moving in one direction and not by installing traffic light signals, sign B,5 „PRIORITY FOR ONCOMING TRAFFIC” shall be set up facing the traffic on the side which does not have priority. This sign shall mean that entry into the narrow section is prohibited so long as it is not possible to pass through that section without obliging oncoming vehicles to stop.

(b) This sign shall be round, with a white or yellow ground and a red border; the arrow indicating the direction having priority shall be black and that indicating the other direction red.

6. Sign indicating priority over oncoming traffic

(a) To notify drivers that on a narrow section of road they have priority over oncoming vehicles the sign used shall be B,6.

(b) This sign shall be rectangular with a blue ground; the arrow pointing upwards shall be white and the other arrow red.

(c) When sign B,6 is used, a sign B,5 shall be placed on the road, at the other end of the narrow section, for traffic moving in the opposite direction.

Section C

PROHIBITORY OR RESTRICTIVE SIGNS

I. General characteristics and symbols

1. Prohibitory and restrictive signs shall be circular; their diameter shall be not less than 0.60 m outside built-up areas and not less than 0.40 m or 0.20 m for signs prohibiting or restricting standing and parking in builtup areas.

2. Unless otherwise specified where the signs in question are described, prohibitory or restrictive signs shall have a white or yellow ground or blue ground for signs prohibiting or restricting standing and parking with a wide red border; the symbols and the inscriptions, if any, shall be black or dark blue and the oblique bars, if any, shall be red and shall slope downwards from left to right.

II. Descriptions

1. Prohibition and restriction of entry

(a) Notification that entry is prohibited for all vehicles shall be given by sign C,1, „NO ENTRY”, of which there are two models: C,1a, and C,1b.

(b) Notification that all vehicular traffic is prohibited in both directions shall be given by sign C,2, „CLOSED TO ALL VEHICLES IN BOTH DIRECTIONS”.

(c) Notification that entry is prohibited for a certain category of vehicle or road-user only, shall be given by a sign bearing as a symbol the silhouette of the vehicles or road-users whose entry is prohibited.

Sign C,3a; C,3b; C,3c; C,3d; C,3e; C,3f; C,3g; C,3h; C,3i; C,3j; C,3k; and C,3l shall have the following meanings:

C,3a „NO ENTRY FOR ANY POWER DRIVEN VEHICLE EXCEPT TWO-WHEELED MOTOR CYCLES WITHOUT SIDE-CAR”

C,3b „NO ENTRY FOR MOTOR CYCLES”

C,3c „NO ENTRY FOR CYCLES”

C,3d „NO ENTRY FOR MOPEDS”

C,3e „NO ENTRY FOR GOODS VEHICLES”

The inscription of a tonnage figure, either in a light colour on the silhouette of the vehicle or, in accordance with Article 8, paragraph 4 of this Convention, on an additional panel placed below sign C,3e, shall mean that the prohibition applies only if the permissible maximum mass of the vehicle or combination of vehicles exceeds that figure.

C,3f „NO ENTRY FOR ANY POWER DRIVEN VEHICLE DRAWING A TRAILER OTHER THAN A SEMI-TRAILER OR A SINGLE AXLE TRAILER”,

The inscription of a tonnage figure, either in a light colour on the silhouette of the trailer or, in accordance with Article 8, paragraph 4, of this Convention, on an additional panel placed below sign C,3f, shall mean that the prohibition applies only if the permissible maximum mass of the trailer exceeds that figure.

It shall be open to Contracting Parties, in cases where they see fit to do so, to replace, in the symbol, the silhouette of the rear end of a lorry by that of the rear end of a private car, and the trailer silhouette by that of a trailer which can be attached to a private car.

C,3g „NO ENTRY FOR ANY POWER-DRIVEN VEHICLE DRAWING A TRAILER”

The inscription of a tonnage figure, either in a light colour on the silhouette of the trailer or, in accordance with article 8, paragraph 4 of this Convention, on an additional panel placed below sign C,3g, shall mean that the prohibition applies only if the permissible maximum mass of the trailer exceeds that figure.

C,3h „NO ENTRY FOR VEHICLES CARRYING DANGEROUS GOODS FOR WHICH SPECIAL SIGN PLATING IS PRESCRIBED”

To indicate no entry for vehicles carrying certain types of dangerous goods, the sign C,3h may be used in conjunction, if necessary, with an additional panel.

The information given on this additional panel specifies that this prohibition applies only to the carriage of dangerous goods as defined by domestic legislation.

C,3i „NO ENTRY FOR PEDESTRIANS”

C,3j „NO ENTRY FOR ANIMAL-DRAWN VEHICLES”

C,3k „NO ENTRY FOR HANDCARTS”

C,3l „NO ENTRY FOR POWER DRIVEN AGRICULTURAL VEHICLES”

NOTE - It shall be open to Contracting Parties to omit from signs C,3a to C,3l the red oblique bar joining the upper left quadrant and the lower right quadrant or, provided that this does not make the symbol less easy to see and understand, not to interrupt the bar where it crosses the symbol.

(d) Notification that entry is prohibited for several categories of vehicle or road user, may be given either by displaying as many prohibitory signs as there are prohibited classes, or by a single prohibitory sign which shows the silhouettes of the various vehicles or road-users whose entry is prohibited. Signs C,4a „NO ENTRY FOR POWER DRIVEN VEHICLES”; and C,4b „NO ENTRY FOR POWER DRIVEN VEHICLES OR ANIMAL-DRAWN VEHICLES” are examples of such signs.

Signs showing more than two silhouettes may not be set up outside builtup areas, and signs showing more than three silhouettes may not be set up in built-up areas.

(e) Notification that entry is prohibited for vehicles whose mass or dimensions exceed certain limits shall be given by the signs:

C,5 „NO ENTRY FOR VEHICLES HAVING AN OVERALL WIDTH EXCEEDING ... METRES”

C,6 „NO ENTRY FOR VEHICLES HAVING AN OVERALL HEIGHT EXCEEDING ... METRES”

C,7 „NO ENTRY FOR VEHICLES EXCEEDING ... TONNES LADEN MASS”

C,8 „NO ENTRY FOR VEHICLES HAVING A MASS EXCEEDING ... TONNES ON ONE AXLE”

C,9 „NO ENTRY FOR VEHICLES OR COMBINATIONS OF VEHICLES EXCEEDING ... METRES IN LENGTH”.

(f) Notification that vehicles shall not be driven closer together than the distance indicated on the sign shall be given by sign C,10, „DRIVING OF VEHICLES LESS THAN ... METRES APART PROHIBITED”.

2. Prohibition of turning

Notification that turning is prohibited (to the right or to the left according to the direction of the arrow) shall be given by sign C,11a „NO LEFT TURN” or sign C,11b „NO RIGHT TURN”.

3. Prohibition of U-turns

(a) Notification that U-turns are prohibited shall be given by sign C,12 „NO U-TURNS”.

(b) The symbol may be reversed, if appropriate.

4. Prohibition of overtaking

(a) Notification that, in addition to the general rules on overtaking laid down by the regulations in force, the overtaking of power-driven vehicles other than two-wheeled mopeds and two-wheeled motor cycles without side-car travelling on a road is prohibited, shall be given by sign C,13a „OVERTAKING PROHIBITED”.

There are two models of this sign: C,13aa and C,13ab

(b) Notification that overtaking is prohibited only for goods vehicles having a permissible maximum mass exceeding 3.5 tons shall be given by sign C,13b „OVERTAKING BY GOODS VEHICLES PROHIBITED”.

There are two models of this sign: C,13ba and C,13bb

An inscription on an additional panel placed below the sign in accordance with Article 8, paragraph 4 of this Convention may change the permissible maximum mass above which the prohibitions applies.

5. Speed limit

(a) Notification of a speed limit shall be given by sign C,14, „MAXIMUM SPEED LIMITED TO THE FIGURE INDICATED”. The figure appearing on the sign shall indicate the maximum speed in the unit of measurement most commonly used to express the speed of vehicles in the country concerned. After or below the figure expressing the speed may be added, for instance, „Km” (Kilometres) or „m” (Miles).

(b) To indicate a speed limit applicable only to vehicles of a permissible maximum mass exceeding a given figure, an inscription comprising that figure shall be placed on an additional panel below the sign in accordance with Article 8, paragraph 4 of this Convention.

6. Prohibition of the use of audible warning devices

Notification that the use of audible warning devices is prohibited, except to avoid an accident, shall be given by sign C,15 „USE OF AUDIBLE WARNING DEVICES PROHIBITED”. This sign, if not placed at the beginning of a built-up area beside or shortly after the sign identifying the built-up area, shall be accompanied by an additional panel H,2 described in section H of this annex, showing the distance over which the prohibition applies. It is recommended that this sign should not be placed at the beginning of built-up areas when the prohibition applies in all built-up areas and that it be provided that the sign identifying a built-up area placed at the beginning of that area shall notify road users that the traffic regulations applicable to built-up areas in that country apply from that point onwards.