一個唔知有無人搭嘅高鐵，26 公里造價 669 億，平均每公里差唔多 26 億。
一個講咗好耐，可以舒緩南區對外交通嘅地鐵港島南線，7 公里 100 億，平均每公里 14 億多少少。
如果依超支比例計算，高鐵分分鐘成千億先埋到單。如今竟然有當年支持高鐵嘅人話港島南線太貴，我只可以話應驗咗 Decision Science 第一堂所學到嘅事。
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