JSON

Road Types in Japan - JSON

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": "1",
    "slug": "expressway",
    "name": "Expressway",
    "description": "High-speed roads forming the core of the national automobile traffic network."
  },
  {
    "code": "2",
    "slug": "national-highway",
    "name": "National Highway",
    "description": "Roads forming the national trunk road network."
  },
  {
    "code": "3",
    "slug": "prefectural-road",
    "name": "Prefectural Road",
    "description": "Roads forming the regional trunk road network."
  },
  {
    "code": "4",
    "slug": "municipal-road",
    "name": "Municipal Road",
    "description": "Residential roads within municipal areas."
  }
]