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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.
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Topic

Train Testing And Safety

5 items · 4 aliases · peaked week of 3 May 2026 · first seen 2 May 2026

Auckland's train services will shut down for nearly a month in early 2026 to prepare for the City Rail Link opening, with additional closures planned during the April school holidays and ongoing testing of new routes and timetables.

Volume by source orientation Methodology →

Stacked weekly counts; colour by lean. “n/a” covers government and iwi-Māori sources where lean isn't applicable.

Alias drift

How this topic has been named, week by week. A new alias winning out is usually a framing shift.

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In the press Methodology →

How the news corpus has covered this same topic over the last 12 weeks. 1 article from RNZ, Stuff, NZ Herald, ODT, 1News, Newsroom and The Spinoff. Click through to the press view for the full panel.

12-week press volume 1 article
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Heard on radio

Verbatim segments from politicians speaking on podcasts and radio shows about this topic. Sourced via the voice-reference library — each speaker has been confirmed manually from their voice clip. Click play to stream the original audio from the publisher, pre-seeked to the moment the quote starts.

  • Yeah, and that's a reasonable point too. And that's precisely why we're going to do a review. And I'm also really interested in having a look at how we got some of the scope wrong from the start when it comes to urban development, because CRL is not just a transport project, right? It's actually an enabler of growth around the city for housing, for commercial development. And except we didn't really think about all of those things right at the start of the project, okay? We just thought about it as a... as a transport project and said okay let's go on and build an underground rail loop three and a half kilometres underground now that's fine that's important but we missed some opportunities along the way to really take advantage of CRL I mean if you think about it only now are we doing the level crossings along the rest of the rail network in Auckland and all of the evidence is that to really take advantage of city rail links increased passenger service trains you need to do the level crossings but we're only getting on with them now 10 years after we started building CRL. So we've, you know, frankly, the country's made some mistakes along the way and I want to make sure we don't repeat those mistakes in the future.
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Sample framings

Up to 12 framings spread across orientations. Each framing is a short phrase the topic extractor generated to characterise the piece's stance — not a quote from the source. Click through to read the original.

spinoff Centre-left

systematic and rigorous emergency simulations

The City Rail Link might be opening sooner than you think
20 May
hdpa-drive Government / N-A

prudent caution over operational readiness

Chris Bishop: Infrastructure Minister on the planned review into the City Rail Link Build
7 May
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