在讨论“细节决定成败”时,上海地铁一号线与二号线是个热门案例:三级台阶。要进入一号线地铁口,必须先踏上三级台阶,再往下进入地铁站。这三级台阶可以阻挡雨水倒灌,减轻地铁的防洪压力。一号线内的防汛设施几乎从未动用过。二号线的室外出口却与地面齐平,曾发生过雨天被淹的 In discussing “details determine success or failure”, Shanghai Metro Line 1 and Line 2 is a hot case: three steps. To enter the subway line, you must first set foot on the three steps, then down into the subway station. These three steps can prevent rainwater intrusion and reduce the subway’s flood control pressure. Flood control facilities in Line 1 have almost never been used before. The second line of the outdoor exit is flush with the ground, there have been flooded rainy days