Road signs in Portugal

Warning signs

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  A1a - (Dangerous) Curve to the right
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  A1b - (Dangerous) Curve to the left
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  A1c - Double curve, first to right
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  A1d - Double curve, first to left
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  A2a - Bump
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  A2b - Dip
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  A2c - Uneven road
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  A3a - Steep hill downwards (Dangerous descent)
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  A3b - Steep climb (Dangerous climb)
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  A4a - Road narrows on both sides
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  A4b - Road narrows on left
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  A4c - Road narrows on right
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  A5 - Slippery road
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  A6 - Gravel projection (Loose chippings)
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  A7a - Low shoulder on right
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  A7b - Dangerous shoulder on left
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  A8 - Unprotected quayside or precipice ahead
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  A9 - Falling rocks
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  A10 - Opening or swing bridge
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  A11 - Ice or snow
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  A12 - Sidewinds
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  A13 - Insufficient visibility
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  A14 - Children
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  A15 - Elderly people crossing
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  A16a - Pedestrian crossing
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  A16b - Pedestrians
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  A17a - Cyclist crossing
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  A17 - Cyclists
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  A18 - Equestrians
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  A19a - Animals (usually, domestic livestock)
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  A19b - Wild animals
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  A19c - Iberian lynx crossing
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  A19d - Amphibian crossing
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  A20 - Tunnel
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  A21 - Airfield runway (/Low-flying aircraft)
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  A22 - Traffic signals ahead
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  A23 - Roadworks
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  A24 - Crossroad without priority
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  A25 - Two-way traffic
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  A26 - Level crossing with gates or barriers
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  A27 - Level crossing without gates or barriers
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  A28 - Intersection with rail-based transport (Tramway)
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  A29 - Other dangers
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  A30 - Traffic queues likely
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  A31 - Road obstruction (Accident)
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  A32a - Single crossbuck - Level crossing without gates or barriers
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  A32b - Double crossbuck - Level crossing without gates or barriers with two or more lines

Priority signs

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  B1 - Give way
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  B2 - Stop
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  B3 - Priority road
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  B4 - End of priority road
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  B5 - Priority for oncoming traffic
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  B6 - Priority over oncoming traffic
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  B7 - Roundabout ahead
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  B8 - Crossroad with priority
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  B9a - Side road with priority on left
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  B9b - Side road with priority on right
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  B9c - Merging traffic on left
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  B9d - Merging traffic on right

Prohibition signs

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  C1 - No entry
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  C2 - No vehicles both directions
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  C3a - No motor vehicles
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  C3b - No dangerous goods
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  C3c - No lorries/trucks
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  C3d - No lorries/trucks over 3.5 tonnes
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  C3e - No motorcycles or mopeds
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  C3f - No mopeds
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  C3g - No cycles or mopeds
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  C3h - No agricultural vehicles
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  C3i - No animal-drawn vehicles
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  C3j - No hand-carts
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  C3l - No pedestrians
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  C3m - No equestrians
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  C3n - No trailers
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  C3o - No trailers over 2 tons
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  C3p - No vehicles carrying dangerous goods
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  C3q - No vehicles carrying explosives
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  C3r - No vehicles carrying polluted water
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  No buses
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  C4a - No motor vehicles
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  C4b - No lorries or trailers
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  C4c - No motor vehicles or animal-drawn vehicles
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  C4d - No trucks or animal-drawn vehicles
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  C4e - No pedestrians, mopeds, animals, or handcarts
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  C4f - No bicycles, mopeds, and motorcycles
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  No trucks and buses
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  C5 - Axle limit
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  C6 - Weight limit
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  C7 - Length limit
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  C8 - Width limit
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  C9 - Height limit
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  C10 - Driving vehicles distance
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  C11a - No right turn
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  C11b - No left turn
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  C12 - No U-turn
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  C13 - Maximum speed limit (km/h)
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  C14a - No overtaking
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  C14b - No overtaking by lorries
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  C14c - No overtaking by motorcycles
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  C15 - No parking
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  C16 - No standing or parking
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  C17 - No hooting
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  C18 - Customs check
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  C19 - Toll (listed as "Other compulsory stops")
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  C20a - National speed limit
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  C20b - End of maximum speed limit
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  C20c - End of overtaking prohibition
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  C20d - End of overtaking by lorries prohibition
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  C20e - End of no overtaking by motorcycles
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  C21 - End of no parking
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  C22 - End of hooting prohibition

Mandatory signs

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  D1a - Turn right
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  D1b - Turn left
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  D1c - Straight ahead
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  D1d - Turn left ahead
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  D1e - Turn right ahead
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  D2a - Straight ahead or turn left
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  D2b - Straight ahead or turn right
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  D2c - Turn left or right
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  D3a - Keep right
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  D3b - Keep left
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  D4 - Roundabout
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  D5a - Trucks only
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  D5b - Heavy vehicles only
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  D5c - Motorcycles only
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  D6 - Buses only
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  D6a - High-occupancy vehicles only
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  D7a - Compulsory way for cyclists
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  D7b - Compulsory way for pedestrians
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  D7c - Compulsory way for equestrians
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  D7d - Compulsory way for cattle herds
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  D7e - Compulsory way for pedestrians and bicycles
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  D7f - Compulsory way for pedestrians and bicycles (Pedestrians keep right)
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  D8 - Minimum speed limit (km/h)
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  D9 - Snow chains on tires
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  D10 - (Medium) Headlights on
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  D11a - End of trucks only
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  D11b - End of heavy vehicles only
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  D11c - End of motorcycles only
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  D12 - End of buses only
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  End of high-occupancy vehicles only
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  D13a - End of compulsory way for bicycles
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  D13b - End of compulsory way for pedestrians
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  D13c - End of compulsory way for equestrians
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  D13d - End of compulsory way for cattle herds
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  D13e - End of compulsory way for pedestrians and bicycles
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  D13f - End of compulsory way for pedestrians and bicycles
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  D14 - End of minimum speed limit (km/h)
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  D15 - End of snow chains on tires
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  D16 - (Medium) Headlights off

Zone signs

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  G1 - Parking zone
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  G2a - No parking zone
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  G2b - No parking zone
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  G3 - No stopping zone
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  G4 - Speed limited zone
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  G5a - No vehicles zone
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  G5b - No trucks zone
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  G6 - End of parking zone
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  G7a - End of parking zone
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  G8 - End of speed limited zone
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  G9 - No vehicles zone ends

Information signs

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  H1a - Parking
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  H1b - Parking garage
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  H2 - Hospital
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  H3 - One-way traffic
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  H4 - Dead end
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  H5 - Snow chains recommended
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  H6 - Recommended speed
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  H7 - Pedestrian crossing
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  H8a - Pedestrian grade-separated crossing (ramp)
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  H8b - Pedestrian grade-separated crossing (stairs)
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  H9 - Hospital with urgent medical care
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  H10 - First aid station
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  H11 - Repair services
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  H12 - Public telephone
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  H13a - Petrol station
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  H13b - Petrol and gas (GPL) station
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  H14a - Camping
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  H14b - Caravan site
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  H14c - Camping and caravan site
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  H15 - Emergency telephone
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  H16a - "Pousada" or Inn
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  H16b - Hostel ("Albergue")
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  H16c - Youth hostel
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  H16d - Rural tourism
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  H17 - Hotel
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  H18 - Restaurant
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  H19 - Café or bar
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  H20a - Bus stop
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  H20b - Tram stop
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  H20c - School bus stop
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  H21 - Airport
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  H22 - Information post
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  H23 - Road information radio
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  H24 - Motorway (Auto-estrada)
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  H25 - Road reserved for automobiles and motorcycles
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  H26 - Emergency escape
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  H27 - U-turn place
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  H28 - National speed limits
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  H29 - EU country border
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  H31a - Lane begins
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  H32 - Lane ends
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  H33 - Via Verde
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  H34 - Car Inspection Centre
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  H35 - Tunnel
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  H36 - End of snow chains recommendation
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  H37 - End of recommended speed limit
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  H38 - End of motorway
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  H39 - End of car and motorcycle-exclusive road
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  H40 - End of parking area
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  H41 - End of tunnel
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  H42 - Average-speed camera

Pre-signaling sign

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  I2a - Intersection directions with distance to crossing (IP-class road model shown)
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  I2b - Directions at the roundabout
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  I2c - Directions at the intersection
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  I2d - Intersection directions for an unlevel crossing, with distance shown (IP-road model shown)
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  I2e - Pre-notice signage, straight on (IP road model)
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  I3a - Reduced pre-notice sign
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  I3b - Reduced pre-warning signage for a crossing
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  I4a - Service station
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  I6 - Guide to the left turn point
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  I7a - Dead-end
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  I7b - Dead-end
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  I8 - Children crossing ahead
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  I9a, I9b and I9c - Level crossing countdown markers
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  I9d, I9e and I9f - Level crossing countdown markers

Direction, confirmation and location signs

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  J1 - Direction at the intersection
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  J2 - Access direction (here for an aerodrome/airport)
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  J3a - Urban direction signage (here for a cultural point-of-interest, a castle)
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  J3b-d - Urban direction signage
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  L1 - "Direction confirmation sign" (Distances to key towns on road)
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  N1a - Start of settlement
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  N1b - Start of settlement variant (here as a World Heritage Site)
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  N2a - End of settlement
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  N2b - Start of settlement variant (here as a World Heritage Site)
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  O4a, O4b and O4c - Distance to exit approximation side-panels (motorway)
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  O5a - Directional bay for marking divergence points
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  O5b - Directional bay for marking divergence points
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  O6a - Directional bay
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  O6b - Directional bay
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  O7a and O7b - Positioning markers
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  River name

Additional indication signs

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  Model 1a - Distance
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  Model 1b - Distance (to a stop sign)
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  Model 2 - Indication of the duration of a stretch of road or condition
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  Model 3a - Start or end of regulated area (left)
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  Model 3b - Start or end of regulated area (ahead)
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  Model 3c - Start or end of regulated area (right)
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  Model 3d - Start or end of regulated area
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  Model 4a - Regulated extension. Condition exists only in the alloted space.
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  Model 4b - Regulated extension. Condition exists only in the alloted space.
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  Model 5 - Regulated extension. Condition exists only in the alloted space.
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  Model 6a - Continuation of regulated extension
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  Model 6b - Continuation of regulated extension.
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  Model 7a - Period in effect. This version indicates the days in which the rule is applicable.
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  Model 7b - Period in effect. This variant indicates a specific day applicable
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  Model 7c - Period in effect. This variant indicates time span.
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  Model 7d - Period in effect. This variant indicates days and times.
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  Model 8 - Time duration. The example shown imposes usage of at least 30 minutes.
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  Model 9 - Weight limit
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  Model 10a - Exception to imposed rule
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  Model 10b - Exception to imposed rule
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  Model 12a - Perpendicular parking. Used in conjunction with sign H1.
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  Model 12b - Angled parking. Used in conjunction with sign H1.
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  Model 12c - Parking on kerb. Used in conjunction with sign H1.
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  Model 12d - Parking on pavement. Used in conjunction with sign H1.
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  Model 12e - Parking on kerb perpendicular to the road. Used in conjunction with sign H1.
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  Model 12f - Parking on pavement, perpendicular to the road. Used in conjunction with sign H1.
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  Model 13a - Right-of-way priority diagram direction for a junction. Used in conjunction with sign B3.
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  Model 13b - Right-of-way priority diagram direction for a crossing. Used in conjunction with sign B3.
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  Model 14: Varied information. Here, it warns of maneuvering vehicles at a certain distance.
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  Model 15a - Heavy rain. Typically used in conjunction with signs A5 and A29.
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  Model 15b - Snowy or icy conditions. Typically used in conjunction with signs A5 and A29.
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  Model 16 - Snowplough. Typically used in conjuction with sign A29.
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  Model 19a - Restriction of use. In this case, the area may only be used for loading and unloading.
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  Model 20 - Paid parking.

1926 road signs

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  Uneven road
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  Series of bends
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  Crossroad
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  Level crossing with barriers
• 
  Level crossing without barriers
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  Danger

1935 road signs

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  Uneven road
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  Series of bends
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  Crossroad
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  Level crossing with barriers
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  Level crossing without barriers
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  Danger
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  Danger
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  Yield
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  No vehicles
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  No entry
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  No motor vehicles with more than three wheels
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  No motorcycles
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  No motor vehicles
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  Weight limit
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  Speed limit
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  No stopping
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  No parking
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  No overtaking
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  No honking
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  Customs
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  Mandatory direction
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  Parking
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  Caution
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  First aid

1954 road signs

1959 road signs