Warning signs

Merging traffic

Traffic from another lane or road merges with the traffic stream ahead.

Look for joining vehicles and leave room to respond safely. Follow the signs and markings that govern the merge.

The symbol shows a branch converging with a continuing traffic stream. Australia’s W5-34-L uses a black merging arrow on a yellow diamond, with traffic joining from the left.

How it looks in each country

Official sign in each country; the code is its number in the national rules. Signs that come in two directions show the left and the right version.

Vienna Convention modelCode A,18d
ArgentinaCode P-22
AustraliaCode W5-34-L / W5-34-R
BangladeshCode B7
BelgiumCode B15b / B15g
BrazilCode A-13a / A-13b
CanadaCode TC-045
ChileCode PI-4i / PI-4h
ChinaCode 警 44a / 警 44b
ColombiaCode SP-21 / SP-22
CroatiaCode A04-3 / A04-4
DenmarkCode E16.1
EstoniaCode 533a
FinlandCode E30
GreeceCode K-29a / K-29d
IndiaCode II-19
IranCode 3-12 / 3-11
IrelandCode W-030
IsraelCode 124 / 123
ItalyCode II 43/e / II 43/d
JapanCode 210
MalaysiaCode WD28b / WD28a
MexicoCode SP-17A / SP-17
NorwayCode 531.102
PhilippinesCode W2-9 L / W2-9 R
PolandCode A-6e / A-6d
PortugalCode B9c / B9d
RussiaCode 2.3.6
Saudi Arabia
SerbiaCode I-29 / I-29.1
SpainCode p1d / p1c
Switzerland
TaiwanCode 警21 / 警20
ThailandCode ต-46 / ต-47
TürkiyeCode T-23b / T-23a
United Arab EmiratesCode 410
United KingdomCode 508.1
United StatesCode W4-1L / W4-1R

Image credits

Sign images from Wikimedia Commons, used under their licences.

Vienna Convention model A,18d: United Nations, Public domain
Argentina P-22: Municipio de Morón, Public domain
Australia W5-34-L: Government of Queensland, Public domain
Belgium B15b: Userc11, Public domain
Brazil A-13a: Departamento Nacional de Infraestrutura de Transportes, Public domain
Canada TC-045: Transportation Association of Canada, Public domain
Chile PI-4i: Government of Chile – National Traffic Safety Commission, Public domain
China 警 44a: Standardization Administration of the People's Republic of China, Public domain
Colombia SP-21: Gobierno de Colombia, Public domain
Croatia A04-3: Rl91, Public domain
Greece K-29a: Christaras A, CC BY-SA 3.0
India II-19: Indian Roads Congress, Public domain
Iran 3-12: มองโกเลีย๔๔, CC0
Israel 124: มองโกเลีย๔๔, CC BY-SA 4.0
Italy II 43/e: F l a n k e r, CC BY-SA 3.0
Malaysia WD28b: Public Works Department Malaysia, Public domain
Mexico SP-17A: Original: Secretaría de Infraestructura, Comunicaciones y Transportes / Secretaría de Desarrollo Agrario, Territorial y Urbano Vector: Too Classy for This World, Public domain
Philippines W2-9 L: Government of the Philippines - Department of Public Works and Highways derivative work: Fry1989 eh?, Public domain
Poland A-6e: Unknown author, Public domain
Portugal B9c: Fer1997, CC BY-SA 3.0
Serbia I-29: No.cilepogača, CC BY-SA 4.0
Spain p1d: Unknown author, Public domain
Taiwan 警21: 中華民國交通部, Public domain
Thailand ต-46: Government of Thailand, Public domain
Türkiye T-23b: Gigillo83, CC BY-SA 4.0
United Arab Emirates 410: มองโกเลีย๔๔, Public domain
United States W4-1L: Federal Highway Administration - MUTCD, Public domain
Vienna Convention model A,18d: United Nations, Public domain
Argentina P-22: Original: Vialidad Nacional - Ministerio de Transporte - Presidencia de la Nación Vectorization: Civitas13, Public domain
Australia W5-34-R: Government of Queensland, Public domain
Bangladesh B7: Bangladesh Road Transport Authority, Public domain
Belgium B15g: Userc11, Public domain
Brazil A-13b: Departamento Nacional de Infraestrutura de Transportes, Public domain
Canada TC-045: Transportation Association of Canada, Public domain
Chile PI-4h: Government of Chile – National Traffic Safety Commission, Public domain
China 警 44b: Standardization Administration of the People's Republic of China, Public domain
Colombia SP-22: Gobierno de Colombia, Public domain
Croatia A04-4: Rl91, Public domain
Denmark E16.1: Bewitchedroutine, Public domain
Estonia 533a: Gigillo83, Public domain
Finland E30: Republic of Finland, Public domain
Greece K-29d: Christaras A, CC BY-SA 3.0
India II-19: Indian Roads Congress, Public domain
Iran 3-11: มองโกเลีย๔๔, CC0
Ireland W-030: Government of Ireland – Department of Transport, Public domain
Israel 123: มองโกเลีย๔๔, CC BY-SA 4.0
Italy II 43/d: F l a n k e r, CC BY-SA 3.0
Japan 210: Monaneko, Public domain
Malaysia WD28a: Public Works Department Malaysia, Public domain
Mexico SP-17: Original: Secretaría de Infraestructura, Comunicaciones y Transportes / Secretaría de Desarrollo Agrario, Territorial y Urbano Vector: Too Classy for This World, Public domain
Norway 531.102: Peter J. Acklam converted the original EPS file to PDF with Ghostscript’s ps2pdf utility and the PDF file to SVG with Inkscape., Public domain
Philippines W2-9 R: Government of the Philippines - Department of Public Works and Highways derivative work: Fry1989 eh?, Public domain
Poland A-6d: Unknown author, Public domain
Portugal B9d: Fer1997, CC BY-SA 3.0
Russia 2.3.6: Юкатан, CC BY-SA 3.0
Saudi Arabia: มองโกเลีย๔๔, CC0
Serbia I-29.1: No.cilepogača, CC BY-SA 4.0
Spain p1c: Unknown author, Public domain
Switzerland: Bundesamt für Strassen (ASTRA), Public domain
Taiwan 警20: 中華民國交通部, Public domain
Thailand ต-47: Government of Thailand, Public domain
Türkiye T-23a: Gigillo83, CC BY-SA 4.0
United Arab Emirates 410: มองโกเลีย๔๔, Public domain
United Kingdom 508.1: UK Government, Public domain
United States W4-1R: Unknown author, Public domain

How it looks in each country

Related signs