{
  "소로": {
    "shoulder": 0.5,
    "ascon_surface_mm": 50,
    "ascon_base_mm": 60,
    "subbase_mm": 200,
    "frost_mm": 200
  },
  "중로": {
    "shoulder": 1.0,
    "ascon_surface_mm": 60,
    "ascon_base_mm": 70,
    "subbase_mm": 250,
    "frost_mm": 200
  }
}