📋 What was this drill?

Drill: Status semantics: a notification list using only semantic colors (success/warn/danger/info). Each status must be distinguishable to colorblind users (shape + color, not color alone).

Interpretation: Built as a freight-rail network ops console (Switchyard) — 11 notifications across incident/warning/note/resolved on a warm paper ops canvas. Constraints: each status triple-encoded as glyph shape (octagon/triangle/square/disc) + left-edge rail + tinted tile so hue is never load-bearing; severity split onto mono P1/P2 chips; all four hues WCAG-clamped to 4.5:1. Aesthetic reference: Linear/Vercel operator chrome — flat hairline-divided list, uppercase tracked micro-labels, JetBrains Mono tabular timestamps.

Switchyard Network Desk

Notifications

Region 4 desk · Wed 26 Aug · 06:00–14:00 CT

New · 3 unread

  1. Derailment blocks Sideline 2 at MP 214.6

    Six cars on train 4807 derailed at MP 214.6; Sideline 2 blocked in both directions, mainline clear. MOW crew ETA 16:40, wrecker ordered from Proviso.

    P1 · Track circuit · INC-2026-0826-0041
    09:12
  2. Heat order 30 mph — subdivisions G through K

    Rail-head temperature 128 °F at Gladstone sensor. Restriction runs until 19:00 or rail temp below 105 °F, whichever is later.

    Track sensors · WRN-1187 · G–K
    10:05
  3. Run 4402 completed — interchange billing posted

    42 cars set out at Belt Jct interchange; billing posted to account 88-2301, $61,204.00 pending reconciliation.

    Billing · RUN-4402
    10:18

Earlier today · 8

  1. Near-miss reported at Oak Creek crossing

    Train 6612 reported a vehicle inside the gates at crossing 447-112J at 08:57; no contact. Video requested from camera 447-J2, FRA form 618F pending.

    P2 · Crossing 447-112J · INC-2026-0826-0039
    09:01
  2. Hazmat certificate expires in 72 h — tank car WKC-4417

    DOT-111 certificate for anhydrous ammonia service expires 08-29. Car currently bad-order at Badger Yard, track 4.

    Hazmat registry · WRN-1184
    08:44
  3. Traction power restored — subdivision C

    Feeder breaker 32 reclosed after tree contact at MP 88.2; both catenaries nominal at 12.4 kV. Outage lasted 1 h 50 m.

    Traction power · EVT-5521
    08:30
  4. Crew change posted — train 218 at Northgate

    Outbound crew W-114 tied up at 08:02; crew W-207 called for 11:05 departure, 2 man-hours over the plan.

    Crew desk · TRN-218
    08:12
  5. Hot bearing alarm — car WKC-4417, train 6612

    Wayside detector at MP 96.4 flagged the north journal at +43 °F over train average. Train 6612 stopped; car set out at Kettle Falls.

    Detector MP 96.4 · WRN-1182
    07:56
  6. Slow order lifted — MP 140.2 to 141.0

    Surfacing complete; 10 mph slow order removed and line speed restored to 49 mph after 6 h 12 m.

    Track maintenance · GO-2417
    07:41
  7. Daily interchange reconciliation clean

    0 of 412 interchange records flagged; billing variance 0.08 % — third consecutive day under 0.1 %.

    Billing · RCON-0826
    07:15
  8. Bulletins published for 08-27

    6 general orders and 2 track bulletins issued, affecting subdivisions C, F, and J; cuts take effect 00:01.

    Dispatch · BUL-0827
    07:02