Brazil | Area code 55 | Common abbreviation BR | Last updated 20-1-2007 | |||
| Road class | Syntax explanation | Administrative subordination | Sub classes | Zones | System | Remarks |
| Federal highway (rodovia federal) | BR[0-9]<3> | national | 010-399 | Spider-web with double grid | Exit numbers by km | |
| 400-499 | ||||||
| State highway (rodovia estadual) | [A-Z]<2>[0-9]<3> | state | see region table | |||
| General description: | ||||||
| Federal highways: The first digit determines the type of road: | ||||||
| Syntax | Type | in Portuguese | Location | Description | Kilometerage | |
| 0[1-8]0 | radial highways | rodovias radiais | radiate in clockwise order from Brasília, 010 northbound | from Brasília | ||
| 1[0-4][0-9] | north - south routes | rodovias longitudinais | East of Brasília | numbers increase in westbound direction | runs north-south | |
| 1[5-9][0-9] | West of Brasília | |||||
| 2[0-4][0-9] | east-west routes | rodovias transversais | North of Brasília | numbers increase in southbound direction | runs east-west | |
| 2[5-9][0-9] | South of Brasília | |||||
| 3[0-4][24680] | diagonal routes | rodovias diagonais | Northeast of Brasília | northwest - southeast increasing to southwest | begins at northernmost point | |
| 3[5-9][24680] | Southwest of Brasília | |||||
| 3[0-4][13579] | Northwest of Brasília | northeast - southwest increasing to southeast | ||||
| 3[5-9][13579] | Southeast of Brasília | |||||
| 4[0-4][0-9] | connections | ligações | North of Brasília | short sections | begins in the north or at most important road | |
| 4[5-9][0-9] | South of Brasília | |||||
| State highways: Numbering system per state. The two-letter state code is used. Numbers may begin with trailing zeroes.
In many states, the state highway numbering system is a copy of the federal numbering system, with the state capital as the center. In the region table, this is indicated by 'N'. In some cases, there are minor deviations. | ||||||
| Other local road numbers exist only in Rio de Janeiro. | ||||||
| Road signs: Green with white text, road number shields are white with black text. | ||||||
| History:
The current system was developed by the new military regime in the 1960's, as part of a large modernization programme. The old system
only had 1- and 2-digit national road numbers.
In São Paulo all BR roads except 116, 153 and 381 were transferred to the state in the 1980's. In 1989 the northern part of Goiás was split off to become the new state Tocantins. A new road numbering system was introduced in the 1990's. | ||||||
Sources and links: Various maps and atlases
Official sites: | ||||||
| State | Code | System/remarks |
| Acre | AC | 0[0-9]<2>: radial roads from Rio Branco, increasing in clockwise direction 4[0-9]<2>: other roads |
| Alagoas | AL | 1[0-9]<2> north-south, 2[0-9]<2> east-west |
| Amazonas | AM | N but 010 runs from Manaus to the east |
| Amapá | AP | unknown |
| Bahia | BA | [0-7][0-9]<2> |
| Ceará | CE | [0-3][0-9]<2> |
| Distrito Federal | DF | [01][0-9]<2>, most numbers begin with 0 |
| Espírito Santo | ES | N but the 300 series is different: odd numbers run northwest-southeast and even numbers run northeast-southwest |
| Goiás | GO | N but 010 runs from Goiânia to the east |
| Maranhão | MA | 0[0-9]<2> north-south routes increasing to east, 1[0-9]<2> east-west routes increasing to south, [2-4][0-9]<2> other roads, each sub series (200's, 300's and 400's) separately increasing to south |
| Minas Gerais | MG | N |
| Mato Grosso do Sul | MS | N |
| Mato Grosso | MT | N |
| Pará | PA | 1[0-9]<2> north-south routes increasing to west, 2[0-9]<2> east-west routes increasing to south, [34][0-9]<2> other roads |
| Paraíba | PB | [0-4][0-9]<2> |
| Pernambuco | PE | [0-4][0-9]<2> increasing to the west |
| Piauí | PI | 1[0-9]<2> north-south routes increasing to west, 2[0-9]<2> east-west routes increasing to south |
| Paraná | PR | 1[0-9]<2> north-south routes increasing to west, 2[0-9]<2> east-west routes increasing to south, [3-5][0-9]<2> other roads |
| Rio de Janeiro | RJ | [0-2][0-9]<2>, numbers increase further away from Rio de Janeiro Local road numbers in city of Rio de Janeiro: [12][0-9]<2>, 1xy radial, 2xy transversal |
| Rio Grande do Norte | RN | [014][0-9]<2> |
| Rondônia | RO | [0-4][0-9]<2>, most numbers begin with 3 or 4 |
| Roraima | RR | 1[0-9]<2> north-south routes increasing to west, 2[0-9]<2> east-west routes increasing to south, [34][0-9]<2> other roads |
| Rio Grande do Sul | RS | N but minor roads have numbers [4-6][0-9]<2> |
| Santa Catarina | SC | [34][0-9]<2> |
| Sergipe | SE | 1[0-9]<2> northeast-southwest routes (parallel to coast), 2[0-9]<2> northwest-southeast routes |
| São Paulo | SP | Spider-web: numbers increase in clockwise direction. Numbers of radial roads from São Paulo approximately have the number of the compass direction measured in degrees from the north. |
| Tocantins | TO | N |