A. Warning signs.

Aa type signs are triangular with a red border. When used in an electronic display the background is black while the figure is in white.

A1. Dangerous bend or dangerous bends.

A1a: Sharp bend to the left.
A1b: Sharp bend to the right.
A1c: Sharp bends, first to the left.
A1d: Sharp bends, first to the right.
A1e: Sharp corner to the left, used in many countries.
A1f: Sharp corner to the right, used in many countries.
A1g: Sharp corners, first to the left, used in many countries.
A1h: Sharp corners, first to the right, used in many countries.
A1i: Winding road, used in many countries.
A1j: Bend or succession of bends, the older sign, still used in some countries.

A2. Steep descend.

A2a and A2c are for Aa type signs, A2b and A2d for Ab type signs.
A2a: Steep descend, the figures indicate how steep.
A2c: Steep descend, the steepness can be indicated on a plate below.

A3. Steep ascend.

A3a and A3c are for Aa type signs, A3b and A3d for Ab type signs.
A3a: Steep ascend, the figures indicate how steep.
A3c: Steep ascend, the steepness can be indicated on a plate below.

A4. Road narrows.

A4b.1 is an example on how to better indicate what way, A4b.2 is an alternative that generally does occur.
A4a: Road narrows.
A4b.1: Road narrows on the left.
A4b.2: Road narrows on the right.

A5. Moving bridge.

A5: Moving bridge.

A6. Quay.

A6: Quay.

A7. Irregular road.

A7a: Bumps.
A7b: Sharp hump.
A7c: Sharp depression.
A7d: Danger of grounding for long vehicles, ued in the UK.
A7e: Uneven road, used in Hong Kong.
A7f: Hump bridge, used in the UK.

A8. Soft verge.

A8.1: Soft verge on the right.
A8.2: Soft verge on the left.
A8.3: Dangerous soft verge on the right for heavy vehicles, used in Iceland.

A9. Slippery road.

A9: Slippery road.

A10. Loose chippings.

A10a is for Aa type signs, A10b for Ab type signs.
A10a.1: Loose chippings.
A10a.2: Loose chippings (left hand traffic version).

A11. Falling rocks.

A11a is for Aa type signs, A11b for Ab type signs.
A11a.1: Falling rocks (right hand traffic only) or falling rocks from the right.
A11a.1: Falling rocks (left hand traffic only) or falling rocks from the left.

A12. Pedestrian crossing.

A12a.1: Pedestrian crossing.
A12a.2: Pedestrian crossing.
A12b.1: Pedestrian crossing.
A12b.2: Pedestrian crossing.
A12c.1: Pedestrian crossing, used in many countries.
A12d.1: Crossing of elderly people, used in some countries.

A13. Children.

A13.1: Children.
A13.2: Children.

A14. Bicycle crossing.

A14.1: Bicycle crossing.
A14.2: Bicycle crossing.

A15. Crossing animals.

A15a.1: Domestic animals (others may be shown).
A15a.2: Domestic animals (others may be shown).
A15b.1: Wild animals (others may be shown).
A15b.2: Wild animals (others may be shown).
A15c.1: Elk, as used in Finland.
A15d.1: Reindeer, as used in Finland.
A15e.1: Horses, as used in Sweden.
A15e.2: Horses, as used in the UK.
A15f.1: Sheep, as used in Sweden.
A15f.2: Sheep, as used in the UK.

A16. Works.

A16: Works ahead.

A17. Traffic lights.

A17a: Horizontal traffic lights ahead, left hand traffic (it is strange that this one is in the convention, the only one that is only for left hand traffic).
A17b: Traffic lights ahead.
A17c: Horizontal traffic lights ahead, right hand traffic.

A18. Junction without priority.

A18a is for Aa type signs, A18b for Ab type signs.
A18a: Dangerous junction ahead.
A18b: Dangerous junction ahead, the Ab sign cross as used in the United Kingdom on a Aa sign.
A18c.1: Road from the left ahead.
A18c.2: Road from the right ahead.
A18d.1: Road forks to the left ahead.
A18d.2: Road forks to the right ahead.
A18e: T-junction ahead.
A18f: Y-junction ahead.
A18g.1: Staggered junction ahead, first from the left.
A18g.2: Staggered junction ahead, first from the right.
A18h.1: Road merges from the left, used in the UK.
A18h.2: Road merges from the right, used in the UK.
A18i.1: Road joins with road from the left, used in the UK.
A18i.2: Road joins with road from the right, used in the UK.
A18j.1: Junction in bend to the left, used in the UK.
A18j.2: Junction in bend to the right, used in the UK.

A19. Junction with priority.

A19a: Junction with minor road ahead.
A19b.1: Minor road from the left ahead.
A19b.2: Minor road from the right ahead.
A19c.1: Minor road joins from the left ahead.
A19c.2: Minor road joins from the right ahead.
A19d: Minor road joins from both sides ahead, used in Sweden.
A19e.1: Minor road joins from the left ahead and road from the right, used in Sweden.
A19e.2: Minor road joins from the right ahead and road from the left, used in Sweden.
A19f.1: Staggered junction with priority ahead, used in the UK.
A19f.2: Staggered junction with priority ahead, used in the UK.
A19g.1: T-junction with priority over the right ahead, used in the UK.
A19g.2: T-junction with priority over the left ahead, used in the UK.

A20. Yield sign ahead.

A20: Yield sign ahead.

A21. Stop sign ahead.

The symbol chosen depends on the actual stop sign used.
A21a: Stop sign ahead.
A21b: Stop sign ahead.

A22. Roundabout ahead.

A22.1: Roundabout ahead.
A22.2: Roundabout ahead (left hand traffic version).

A23. Two-way traffic ahead.

A23.1: Two way traffic ahead.
A23.2: Two way traffic ahead (left hand traffic version).

A24. Possible congestion ahead.

A24.1: Possible congestion ahead.
A24.2: Possible congestion ahead.

A25. Level crossing with barriers.

A25a: Level crossing with barriers ahead.
A25b: Level crossing with automatic half barriers ahead, has been used in the UK, but is no longer used.

A26. Level crossing without barriers.

A26a.1: Level crossing without barriers ahead.
A26a.2: Level crossing without barriers ahead (left hand traffic version).
A26b: Level crossing without barriers ahead.
A26c.1: Level crossing without barriers ahead, used in Germany.

A27. Tramway crossing.

A27.1: Tramway crossing ahead.
A27.2: Tramway crossing ahead (left hand traffic version).

A28. Place of level crossing signalisation.

This is given in a separate document.

A29. Additional signals for level crossings and moving bridges.

This is also given in a separate document.

A30. Airport.

A30.1: Flying airplanes ahead.
A30.2: Flying airplanes ahead.

A31. Lateral winds.

A31.1: Lateral winds ahead.
A31.2: Lateral winds ahead.

A32. Other dangers.

A32.1: Other dangers ahead, mostly indicated by a plate below.
A32.2: Other dangers ahead, older version, still used in some countries.

A33. Danger for ice on road.

A33: Danger for ice on road, used in Germany.

A34. Attention for buses.

A34.1: Attention for buses, used in Germany.

A35. Attention for skiers.

A35.1: Attention for skiers, used in Finland.

A36. Upcoming tunnel.

A36: Upcoming tunnel, used in Iceland.

A37. Attention for accompanied horses.

A37.1: Attention for accompanied horses, used in Sweden.
A37.2: Attention for accompanied horses, used in the UK.

A38. Road closed ahead.

A38: Road closed ahead, used in Hungary.

A39. Lane closed ahead.

Although signs like the one below are not according to the convention (the convention has the G12b sign), they are still widely used. The one below is just an example.
A39: Lane closes ahead, used in many countries.

A40. Dual carriageway ends.

A40: Dual carriageway ends, used in the UK.

A41. Overhead electric cable.

A41: Overhead electric cable, used in the UK.

A42. Accident black spot.

A42: Accident black spot, used in Hong Kong.

A43. Change to other carriageway ahead.

A43a: Change to carriageway on the right ahead, used in the UK.
A43b: Change to carriageway on the left ahead, used in the UK.

A44. Height limit ahead.

A44: Height limit ahead, used in the UK.

A45. Two way traffic road ahead.

A45.1: Two way traffic road ahead (right hand traffic version), as far as I know not really used.
A45.2: Two way traffic road ahead, used in the UK.

A46. Pedestrians on road ahead.

A46: Pedestrians on road ahead (no footpath), used in the UK.

A47. Barrier ahead.

A47: Gate ahead, used in the Hong Kong.

A97. Worded signs.

These are not according to the convention, but some countries use them. The convention says that the generic warning sign is to be used with a plate (H type sign) that tells the nature of the danger.
A97a: A worded sign as used in the UK.
A97b: A worded sign as used in the Hong Kong.

A98. Accident.

Used in electronic displays.
A98: Accident, used in some countries.

A99. Bad visibility due to snow or fog.

Used in electronic displays.
A99: Bad visibility due to snow or fog, used in some countries.