Xiaoshan in the context of "Grade separation"

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⭐ Core Definition: Xiaoshan

Xiaoshan is a suburban district of Hangzhou, Zhejiang, China. It was formerly a city in its own right, separated by the Qiantang River from Hangzhou proper, but the municipality was annexed by its more populous neighbor in 2001.

Xiaoshan has a permanent population with residential rights of around 1,511,000 and an additional non-permanent population of about 876,500. Most of the local residents are Han people who speak a local variety of Wu Chinese in addition to Mandarin Chinese. The area's history of human settlement dates back to more than 8000 years ago, as excavations at Xiaoshan's Kuahuqiao archeological site have shown. Xiaoshan's manufacturing-dominated economy has made it one of the most affluent metropolitan districts in China. In 2012 it had a GDP of 161.2 billion CNY, or around $17,000 per capita. Hangzhou's international airport, Hangzhou Xiaoshan International Airport, is located in western Xiaoshan, close to the mouth of Hangzhou Bay. The district is also at the center of one of China's local real estate booms, as the demand for newer, more upscale housing from China's growing middle class has led to an explosion in construction of new high-rise condominiums. In addition, Hangzhou Xiaoshan Sports Centre is also found in Xiaoshan.

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👉 Xiaoshan in the context of Grade separation

In civil engineering (and more specifically, highway or railway engineering), grade separation is a method of aligning a junction of two or more surface transport axes at different heights (grades) so that they will not disrupt the traffic flow on other transit routes when they cross each other. The composition of such transport axes does not have to be uniform; it can consist of a mixture of roads, footpaths, railways, canals, or airport runways. Bridges (or overpasses, also called flyovers), tunnels (or underpasses), or a combination of both can be built at a junction to achieve the needed grade separation.

In North America, a grade-separated junction may be referred to as a grade separation or as an interchange – in contrast with an intersection, at-grade, a diamond crossing or a level crossing, which are not grade-separated.

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