page_title: 4D Train
section_title: Disposal
hierarchical_section_title: 4D Train / Disposal
caption_attribution_description: English: 4D cars 6000T &amp; 5000M have only minutes left as the cutter moves in at Brooklyn 2006.
context_page_description: The 4D was a prototype double deck electric multiple unit built for the Public Transport Corporation, Victoria, Australia, for operation on the Melbourne railway system. It remains the only double deck train ever to have run in Melbourne. The train's name stood for "Double Deck Development and Demonstration."
  Depending on sources, the intention was for this train to be the demonstration unit for a future order of either 20 or 50 extra sets, had the tests been successful.
context_section_description: Ownership of the 4D was transferred back to the Victorian Government Department of Infrastructure, and the set was railed, ironically under its own power, to Newport Workshops in December 2002 for long-term storage.
  In 2006 the 4D was purchased by RailCorp for $168,000
   and stripped of parts compatible with the Tangaras. On 29 March 2006 the 4D was transferred by El Zorro to metal recyclers Sims Metal, Brooklyn for scrapping.
  Railcorp had seriously considered converting the train to 1,435 mm (4 ft 8 ¹⁄₂ in) standard gauge, for exclusive use on shuttle services where structural modifications to add front and rear terminal doors would not have been needed. Unlike other New South Wales electrified rolling stock, the 4D would have been thin enough to operate through the Ten Tunnels on the Zig Zag route, which were built before John Bradfield introduced his wider loading gauge for the Sydney suburban system. However, this plan collapsed on account of the conversion costs.
caption: The 4D being cut up in March 2006
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