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A development known as NEOM is to be built in Saudi Arabia.
A key part of the plan is “The Line”, a A$725 billion futuristic city designed to house 9 million residents. It comprises a mirrored, wall-like structure 200 metres wide and 500 metres tall. To be built in Saudi Arabia’s north-western Tabuk province, the project will extend 170 kilometres inland from the Red Sea across the coastal desert, mountain and upper valley landscapes.
The Line claims to set a new benchmark for sustainable development. Its footprint is just 34 square kilometres (less than 4 square metres per person), occupying a fraction of NEOM’s 26,500-square-kilometre site. This allows for a lighter touch on the landscape than would normally be expected for a mega city. In addition, the NEOM project includes an airport and shipping port, industrial areas, research centres, sports and entertainment venues and tourism destinations.
At first glance, the project appears environmentally impressive. The urban edge is no more than 100 metres from any point in the city. A high-speed electric public transport service ensures no part of The Line is more than 20 minutes away.
Residing in such a gargantuan structure implies a claustrophobic lifestyle. But, in theory, each resident would enjoy an average of 1,000 cubic metres of urban volume. That’s much more generous than most dense city living environments.
Unfortunately, as in many high-density, high-rise buildings, a sophisticated vertical transportation system would be needed. The structure is equivalent to a conventional 125-storey skyscraper.
The project costs also seem modest at US$55,000 per resident. Let’s say this is achievable in a country with much lower employment costs than in developed economies and only relates to infrastructure. Even then, it remains to be seen how ultra-high-speed transit and cutting-edge infrastructure and services within the most massive building ever constructed can be cost-effective.