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Hufeng Expressway (Chinese: 沪奉高速公路), designated S3, is a planned expressway within the city of Shanghai. It was originally known as Expressway Line 5 or the A3 expressway. According to preliminary reports, the expressway is expected to cost CN¥ 16,000,000,000.
References
S3 Shanghai–Fengxian Expressway Wikipedia(Text) CC BY-SA