{
  "computed_at": "2026-05-07T04:06:56.963Z",
  "gtfs_source": {
    "url": "https://data.trilliumtransit.com/gtfs/caltrain-ca-us/caltrain-ca-us.zip",
    "feed_publisher": "Trillium Solutions, Inc.",
    "feed_version": "UTC: 29-Jan-2026 22:42",
    "feed_start_date": "20260131",
    "feed_end_date": "20260831",
    "downloaded_at": "2026-05-07T04:06:56.964Z"
  },
  "thresholds": {
    "tier_1_min_avg_per_weekday": 72,
    "tier_2_min_avg_per_weekday": 48,
    "source": "HCD MPO advisory, March 20, 2026, p.4"
  },
  "stations": [
    {
      "input_name": "Palo Alto / University Ave Caltrain",
      "match_pattern": "^Palo Alto Caltrain ",
      "matched_gtfs_stop_ids": [
        "70171",
        "70172",
        "palo_alto"
      ],
      "matched_gtfs_stop_name": "Palo Alto Caltrain Northbound",
      "weekday_stops_per_day": {
        "Mon": 104,
        "Tue": 104,
        "Wed": 104,
        "Thu": 104,
        "Fri": 104,
        "total_5_day": 520,
        "average": 104
      },
      "service_ids_used": [
        "c_71742_b_86200_d_31"
      ],
      "tier": "1",
      "tier_explanation": "Average 104.0 trains/weekday ≥ 72 → Tier 1 (very high frequency commuter rail)"
    },
    {
      "input_name": "California Avenue Caltrain",
      "match_pattern": "^California Avenue Caltrain ",
      "matched_gtfs_stop_ids": [
        "70191",
        "70192",
        "california_ave"
      ],
      "matched_gtfs_stop_name": "California Avenue Caltrain Northbound",
      "weekday_stops_per_day": {
        "Mon": 90,
        "Tue": 90,
        "Wed": 90,
        "Thu": 90,
        "Fri": 90,
        "total_5_day": 450,
        "average": 90
      },
      "service_ids_used": [
        "c_71742_b_86200_d_31"
      ],
      "tier": "1",
      "tier_explanation": "Average 90.0 trains/weekday ≥ 72 → Tier 1 (very high frequency commuter rail)"
    },
    {
      "input_name": "San Antonio Caltrain",
      "match_pattern": "^San Antonio Caltrain ",
      "matched_gtfs_stop_ids": [
        "70201",
        "70202",
        "san_antonio"
      ],
      "matched_gtfs_stop_name": "San Antonio Caltrain Northbound",
      "weekday_stops_per_day": {
        "Mon": 90,
        "Tue": 90,
        "Wed": 90,
        "Thu": 90,
        "Fri": 90,
        "total_5_day": 450,
        "average": 90
      },
      "service_ids_used": [
        "c_71742_b_86200_d_31"
      ],
      "tier": "1",
      "tier_explanation": "Average 90.0 trains/weekday ≥ 72 → Tier 1 (very high frequency commuter rail)"
    }
  ]
}