{
  "name": "Alishan Highway",
  "slug": "alishan-highway",
  "url": "https://www.bestdrivingroads.com/roads/alishan-highway/",
  "summary": "Highway 18 climbs out of the Chiayi plain through tea slopes and cedar forest to Alishan above 2,000 metres, 200 corners with the fog drifting in and out of the trees. Half the time you can't see a thing, and somehow that's exactly the point.",
  "roadNumbers": [
    "18"
  ],
  "location": {
    "country": "Taiwan",
    "region": "Chiayi County",
    "start": {
      "name": "Fanlu Township",
      "lat": 23.451994,
      "lon": 120.565805
    },
    "end": {
      "name": "Alishan Township",
      "lat": 23.508004,
      "lon": 120.801158
    }
  },
  "measurements": {
    "lengthMiles": 36,
    "lengthKm": 57.9,
    "driveMinutes": 79,
    "corners": 200,
    "hairpins": 15,
    "maxGradientPercent": 10,
    "summitMetres": 2196.8,
    "elevationConfidence": "measured",
    "difficulty": "moderate",
    "tightnessOutOf10": 7
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "autumn",
      "winter"
    ]
  },
  "conditions": {},
  "hazards": [
    "Persistent mountain fog",
    "Tight switchbacks",
    "Frequent tour buses"
  ],
  "scenery": [
    "mountain",
    "forest",
    "valley"
  ],
  "pointsOfInterest": [
    "Xiding Star Viewing Platform (隙頂之星觀景台)",
    "Highway 18 Viewpoint (65.8 km)",
    "Alishan Viewpoint"
  ],
  "geometry": {
    "pointCount": 643
  },
  "attribution": {
    "source": "Routes - bestdrivingroads.com",
    "citation": "Cite with a link to the road page. Stats are measured from the mapped line, not copied from other lists; where elevationConfidence is \"approximate\" the 30 m DEM cannot resolve that line and the elevation figures are indicative.",
    "roadGeometry": "(c) OpenStreetMap contributors, ODbL",
    "terms": "Facts are free to cite with attribution; bulk reproduction of the catalogue requires permission (simon@keane.studio)."
  },
  "updated": "2026-07-25"
}