Canberra's Duplicate Image Problem: How the Capital Stacks Up Against Global Cities Cleaning Up Their Visual Records

Canberra's public sector has a digital housekeeping problem. Across federal agencies, ACT government departments, and major institutions including the Australian National University and the National Library of Australia on Parkes Place, redundant and duplicated image files are consuming server capacity, slowing down public-facing platforms, and creating compliance headaches for records managers trying to meet obligations under the Archives Act 1983. The issue, long treated as a low-priority IT footnote, is getting harder to ignore as storage costs rise and digital accessibility standards tighten.

The timing matters. The federal government's ongoing consolidation of agency digital infrastructure — part of a broader whole-of-government data strategy tied to the Services Australia modernisation program — has forced departments to audit what they actually hold. Duplicate imagery, it turns out, accounts for a disproportionate share of redundant data flagged in those reviews. For a city whose workforce is almost entirely built around government administration and knowledge work, the inefficiency has real dollar consequences.

What Canberra Is Actually Doing

The ACT government's Digital Strategy, which was refreshed in 2024, nominally addresses data quality across directorates, but implementation has been uneven. Transport Canberra, which manages light rail and bus network assets along Flemington Road and Northbourne Avenue, has been working with a third-party vendor to deduplicate imagery in its asset management system — a process that began in late 2025 after a routine audit revealed thousands of near-identical infrastructure photos stored across multiple platforms. The National Archives of Australia, headquartered in the suburb of Mitchell, has been more systematic: its digital preservation team has used perceptual hashing tools to identify visually similar records in its born-digital collections since at least 2023.

ANU's Scholarly Communication team and the University of Canberra's library services in Bruce have both adopted open-source deduplication workflows in the past two years, partly driven by the push to comply with emerging national metadata standards. These are not glamorous projects, but they represent the kind of institutional groundwork that larger cities have been forced to reckon with earlier.

How That Compares Globally

Wellington, which shares Canberra's profile as a compact capital dominated by public sector employment, centralised its government imagery repositories under the New Zealand Digital Government programme and by 2024 had reduced duplicate image holdings in core agency systems by a reported 34 percent. Amsterdam's municipal digital archive, covering roughly 900,000 assets in its Stadsarchief collection, deployed AI-assisted deduplication in 2022 and completed a city-wide pass by mid-2023. Edinburgh, managing records across Scottish Government directorates, contracted with a specialist records management firm in 2021 and processed more than 1.2 million image files across four agencies in an 18-month window.

Washington D.C. is a more complicated comparison. The sheer scale of U.S. federal digital holdings means deduplication is handled agency by agency rather than centrally, a model that actually resembles Canberra more than Wellington does. The Library of Congress's digital collections team has publicly documented its use of MD5 checksums and perceptual hashing to manage its image archives — a technical approach that ANU's library team has been watching closely.

The honest assessment is that Canberra sits somewhere in the middle of this global field. Better than a fragmented approach, not yet as coordinated as Wellington or Amsterdam. The Australian Government Architecture practice — run out of the Digital Transformation Agency on King Edward Terrace in Parkes — has the mandate to push for greater coherence, but agency-by-agency procurement habits are hard to shift quickly.

For public servants and IT managers working inside these systems, the practical advice is straightforward: if your directorate or agency is approaching a software migration or a major storage contract renewal in the next 12 months, that window is the lowest-friction moment to commission a deduplication audit. The cost of doing it proactively is almost always lower than the clean-up bill on the other side of a botched migration. The National Archives office in Mitchell can provide guidance on what counts as a distinct record under current preservation policy — a distinction that matters before you start deleting anything that might have archival value.