The Line (Arabic: ذا لاين) is a proposed smart linear city in Saudi Arabia in Neom, Tabuk, which is designed to have no cars, streets or carbon emissions. The 170-kilometre-long (110 mi) city is part of Saudi Vision 2030 project, which Saudi Arabia claims will create 380,000 jobs and add $48 billion to the country's GDP. The Line is planned to be the first development in Neom, a $500 billion project. The city's plans anticipate a population of 9 million.
As of October 2022, excavation work had started along the entire length of the project.
The project has faced criticism over its impact on the environment and the current population of the area, as well as doubts about its technological and economic viability.
Upon completion, The Line will be 170 kilometres (110 mi) across and will preserve 95% of the nature within Neom. It stretches from the Red Sea, approximately to the city of Tabuk, on the Hejaz railway. It is planned to have nine million residents, resulting in a population density of 260,000 people per square kilometer. By comparison, Manila was the world's most densely populated city as of 2019, with a density of 44,000/km2.[10] The Line's plan consists of two mirrored buildings with an outdoor space in between, having a total width of 200 metres (660 ft) and a total height of 500 metres (1,600 ft). This would make it the 3rd tallest building in the country, after the Abraj Al-Bait Clock Tower and the proposed Jeddah Tower, and approximately the 12th tallest building in the world. The city will be divided into nodes. All daily services are designed to be reachable within a 5-minute walk.
The city will also be powered entirely by renewable energy. The Line will consist of three layers, including one on the surface for pedestrians, one underground for infrastructure, and another underground for transportation. The transportation layer will include a high-speed rail system, which is claimed to allow people to go from one side of the city to the other side in 20 minutes. Without accounting for stops, this would require an average speed of 512 km/h, which is faster than any existing high-speed rail at the time of announcement. Artificial intelligence will monitor the city and use predictive and data models to figure out ways to improve daily life for citizens in The Line, with residents being paid for submitting data to The Line.
Estimated building cost is US$100–200 billion (400–700 billion SAR), with some estimates as high as $1 trillion. It is claimed by the Saudi government that it will create 380,000 jobs, spur economic diversification, and contribute 180 billion SAR (US$48 billion) to domestic GDP by 2030.
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