OpenBrief
⌘K
Log in Sign up
What the picker changes
  • Top topics digest — the cards score the selected period against the prior 4 weeks.
  • 12-week heatmap & outlet matrix — show the 12 weeks ending at the selected week (they slide back with the picker, they aren’t a fixed snapshot).
  • Per-topic volume / alias drift — same 12-week trailing window, anchored on the selected period.
  • Coverage gap quadrant — scores the selected period against the 12 weeks before it (not including it).
  • Anomaly cards — only show alerts the detector fired during the selected period. Quiet weeks legitimately show none.
What stays as-is
  • Outlet orientation strip / lean colours — context-only, drawn from the last 12 weeks of activity regardless.
  • Co-occurrence graph — recent-activity anchored, not picker-driven.
  • Source & topic profiles — all-time data for the topic; the picker doesn’t affect them.
Rolling 7 days is a sliding live window for “current vibes”; switch to Weekly to compare specific weeks side-by-side.
Weekly Rolling 7 days
←
Week of 25 May 2026
→ This week
Press topic

Passenger Safety And Recollections

4 articles · 3 aliases in press · peaked week of 24 May 2026 · first seen 30 May 2026

A passenger train on the TranzAlpine service became stuck in a tunnel near Springfield, prompting a Transport Accident Investigation Commission inquiry to determine causes and prevent future incidents.

Coverage by outlet lean Methodology →

Stacked weekly counts; colour by editorial lean. Stuff and The Spinoff lean centre-left, NZ Herald centre-right, others centre.

Free Sign in free to see weekly press volume on this topic, stacked by editorial lean — the bias signal at a glance. Sign in free Log in

Alias drift

How press outlets have named this topic, week by week.

OpenBrief Pro Watch this topic — get alerted when framing shifts, when an MP adopts new language, or when discourse and press diverge. OpenBrief Pro · NZ$20/mo. See OpenBrief Pro Sign up free

Recent headlines

Most recent 4 articles linking to this topic.

Sample framings

Up to 12 framings spread across outlets. Each framing is the LLM's one-line characterisation of the article's editorial angle — not a quote.

odt Centre

no injuries reported, calm crew handling

TranzAlpine stuck in tunnel for an hour
31 May
rnz Centre

no injuries reported, calm response

TAIC enquiring into how TranzAlpine train became stuck in South Island tunnel
31 May
OpenBrief Pro Watch this topic — get alerted when framing shifts, when an MP adopts new language, or when discourse and press diverge. OpenBrief Pro · NZ$20/mo. See OpenBrief Pro Sign up free

Spotted something wrong on this page? Report a correction.