A novel arrangement to build mass transit links in Hong Kong’s Northern Metropolis aims to reduce construction costs by up to 30 per cent through adopting world-leading mainland Chinese standards for railway lines, the government has said. The Highways Department said on Wednesday the estimated cost of the first phase of the Northern Link rail development was HK$31.4 billion (US$4 billion) and construction of the spur line using mainland standards was set to begin in 2027. “The mainland railway...