Canberra's Duplicate Image Problem: How the Capital Stacks Up Against Global Cities Tackling Visual Data Bloat

Canberra's public sector holds more digital image data per capita than almost any comparable government city in the world. That is not a boast. Across the ACT government's shared service infrastructure and the dozens of Commonwealth agencies headquartered between Barton and Parkes, duplicate image files — scanned documents, planning photographs, architectural renders, and staff headshots stored multiple times across siloed systems — have become a quiet but significant cost problem.

The issue has gained urgency this year as federal agencies grapple with updated data governance frameworks under the Australian Government Data Strategy, which sets storage efficiency benchmarks that departments are now being audited against. For a city whose entire economic identity is built on administration, getting digital housekeeping right is not an abstract IT concern. It is a budget line.

What Canberra Is Actually Doing

The ACT Government's Shared Services division, based in Fyshwick, has been running a deduplication pilot across its document management platforms since late 2025. The program targets image assets held within the territory's planning and land authority records — a category of file that tends to balloon during development booms. With Gungahlin continuing to absorb new residential towers and the Belconnen town centre undergoing significant mixed-use redevelopment, the volume of planning imagery logged each month has roughly tracked construction approvals, which hit a multi-year high in the ACT during the March 2026 quarter according to the Australian Bureau of Statistics.

The Australian National University's School of Computing, on Acton Peninsula, has separately been developing image-fingerprinting tools that can identify near-duplicate photographs — images that differ only in compression, cropping, or minor colour adjustment — rather than just exact binary copies. That distinction matters enormously in practice. Government photography archives, for instance, frequently contain dozens of near-identical shots from a single ministerial event, each filed separately by different staff members into different folders.

The University of Canberra's Human Centred Technology Research Centre, on Kirinari Street in Bruce, has published work examining how metadata mismatches cause deduplication tools to miss obvious visual twins. A single aerial photograph of the Molonglo Valley, re-exported with a different timestamp and tagged by a different officer, can exist as a legally separate record even when the pixel content is identical. Fixing that requires policy change, not just software.

How Other Cities Are Handling It

The comparison with similarly structured government capitals is instructive. Wellington, New Zealand's public-service-heavy capital, completed a whole-of-government digital asset rationalisation in 2024 under its Data and Statistics Act 2022 framework, consolidating storage across 32 agencies and reporting a reduction in duplicated image holdings of more than 40 percent within 18 months. Ottawa has taken a more decentralised approach, leaving individual Canadian federal departments to manage their own deduplication, which analysts from the Treasury Board of Canada Secretariat have flagged as producing uneven results.

Brussels, home to the European Union's administrative core, has mandated a single digital asset management platform for Commission photography since January 2025, a move partly driven by copyright compliance concerns rather than pure storage economics. Canberra's situation more closely resembles Edinburgh's, where the Scottish Government has been attempting to bridge legacy records systems built in the early 2000s with modern cloud infrastructure — a technically messy, politically low-priority task that keeps slipping down the agenda whenever something more visible demands attention.

The costs are real even if they rarely make headlines. Cloud storage is not free. For agencies running thousands of users across platforms like Microsoft SharePoint — which underpins much of the Commonwealth's document infrastructure — redundant image files compound licensing costs, slow search functions, and complicate legal discovery processes when agencies face Freedom of Information requests. A single large FOI response involving planning documents from a growth corridor like Molonglo can require staff to manually triage hundreds of near-identical image files.

The practical path forward, according to the frameworks being developed at both ANU and UC, involves combining automated fingerprinting with clearer filing protocols at the point of upload rather than relying on retrospective clean-up. Agencies planning major system migrations in the second half of 2026 — and several ACT government bodies have exactly that on their project schedules — have a narrow window to embed deduplication logic before old bad habits transfer to new platforms. Miss that window, and the problem simply migrates with everything else.