{
  "corridors": [
    {
      "band": "CLEAR",
      "confidence": "HIGH",
      "drivers": [
        "No closures or restrictions shown on the corridor read — QEII open",
        "Mostly dry, ice in places; Highway 2 corridor: lowest minus 8 degrees, winds to 14 km/h",
        "No Environment Canada warnings in force as of 6:18 AM CST (EC check via Weather Navigation)",
        "Tonight's EC forecast low minus 4 degrees at Edmonton, minus 3 at Calgary — corridor low recorded as the colder endpoint, minus 4; Edmonton overnight wind chill minus 8, Calgary minus 7 — no scoring threshold met"
      ],
      "id": "qeii",
      "low_c": -4,
      "low_source": "Environment Canada",
      "name": "QEII — Calgary ↔ Edmonton",
      "score": 0,
      "sources": [
        "Environment Canada",
        "511 Alberta (via Weather Navigation)"
      ]
    },
    {
      "band": "CLEAR",
      "confidence": "HIGH",
      "drivers": [
        "No closures or restrictions shown on the corridor read — Yellowhead open",
        "Mostly dry, ice in places; Highway 16 corridor: lowest minus 8 degrees, winds to 11 km/h",
        "No Environment Canada warnings in force as of 6:18 AM CST (EC check via Weather Navigation)",
        "Tonight at Jasper: low minus 8 degrees, wind chill minus 11 overnight (+8)",
        "Jasper 6:00 a.m. read minus 9.1 degrees — the third morning running near minus 10",
        "Icefields Parkway snow-tire or chain rule starts Nov 1 (Parks Canada) — context, not scored"
      ],
      "id": "yellowhead",
      "low_c": -8,
      "low_source": "Environment Canada",
      "name": "Yellowhead — Edmonton ↔ Jasper",
      "score": 8,
      "sources": [
        "Environment Canada",
        "511 Alberta (via Weather Navigation)"
      ]
    },
    {
      "band": "CAUTION",
      "confidence": "HIGH",
      "drivers": [
        "Open to through traffic overnight — checked 5:00 AM PDT, no incidents reported",
        "Partial closure / major restriction: 1 work zone in effect (+40)",
        "M+S or 3-peak-mountain-snowflake tires required Oct 1 to Apr 30 (standing rule, not a chain-up requirement, not scored)",
        "No Environment Canada alerts shown for Merritt; tonight EC Merritt forecast: clear, low minus 6 degrees — no snow in tonight's forecast",
        "Winter driving conditions reported on the Coquihalla summit — carry winter tires and allow extra time"
      ],
      "id": "coquihalla",
      "low_c": -6,
      "low_source": "Environment Canada",
      "name": "Coquihalla — Hope ↔ Kamloops",
      "score": 40,
      "sources": [
        "DriveBC (via Is The Coquihalla Open)",
        "Environment Canada"
      ]
    },
    {
      "band": "CLEAR",
      "confidence": "LIMITED",
      "drivers": [
        "No major incident or full closure on any of Toronto's 9 major highways as of 7:19 AM EST",
        "One lane-level 401 item: collision eastbound express at Meadowvale Road, Toronto, right lane and shoulder closed, moderate — not a mainline closure (not scored)",
        "One lane-level 401 item: continuous construction eastbound express at McCowan Road, Toronto, 1 right lane, moderate, since Oct 26 — not a mainline closure (not scored)",
        "EC Toronto-area: no alerts shown; tonight clearing late, low plus 5 degrees — no scoring threshold met",
        "Toronto Pearson 7:00 a.m. read 6.0 degrees, calm wind — not a scoring input"
      ],
      "id": "on-401",
      "low_c": 5,
      "low_source": "Environment Canada",
      "name": "ON 401 — Windsor ↔ Toronto ↔ Kingston",
      "score": 0,
      "sources": [
        "routeoutlook.com (live traffic aggregator, presenting Ontario 511 data)",
        "Environment Canada"
      ]
    }
  ],
  "scored_at": "2026-11-01T05:31:00-07:00"
}