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The image shows two underground car tunnel systems in Australian cities. The first tunnel system, built from 1986 to 1998 at a cost of $555 million, is 2.2 kilometers long and 1.5 meters deep, passing under sand. It features two lanes for vehicles in separate tunnels. The second tunnel system, constructed between 2002 and 2006 with a construction cost of $1.1 billion, spans 3.6 kilometers in length and has a depth exceeding 1.5 meters, passing under stone and clay. This system also comprises two lanes for vehicles in separate tunnels.
Given the complexity of the image, the above description may not be entirely accurate.
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The maps illustrate two different underground tunnel systems for cars in Australia.The first tunnel, which took twelve years to construct between 1986 and 1898, cost $555 million and was built underneath a body of sand and water. Meanwhile, the second one only took four years for completion but cost twice as much, at $1.1 billion, and was constructed beneath a layer of clay and stone.
The size of the tunnels was also substantially various, with the first tunnel being 1.5 meters high and 2.2 km long, and the other tunnel being 2.5 m high was also 3.6 km long. The second tunnel system is six lanes wide, while the first one is only four lanes wide.
In conclusion, there are a number of differences between the two tunnel systems, I term of the cost, size, length, and time of construction.
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