Four types of road classifications based on the Japanese Road Act.
Overview
Road Types in Japan
Japanese roads are classified into four types under the Road Act: expressways, national highways, prefectural roads, and municipal roads. Each type differs in managing authority, legal status, and role, forming a hierarchical structure from national trunk roads to local trunk roads and residential streets.
road
expressway
highway
national road
prefectural road
municipal road
infrastructure
| code | slug | name | description |
|---|---|---|---|
| 1 | expressway | Expressway | High-speed roads forming the core of the national automobile traffic network. |
| 2 | national-highway | National Highway | Roads forming the national trunk road network. |
| 3 | prefectural-road | Prefectural Road | Roads forming the regional trunk road network. |
| 4 | municipal-road | Municipal Road | Residential roads within municipal areas. |