甘肃省会兰州市主城区地形狭长，交通拥堵问题困扰群众出行。七里河区五星坪是兰州通往甘南、临夏等地的必经之地，是一处交通“堵点”。春节将至，五星坪铁路平交道口综合治理项目正在这里加紧建设。记者在施工现场看到，建设者们正在冒着严寒紧张施工。25日，该项目关键控制性工程南山路车行下穿通道顶板浇筑全部完成，三座人行天桥已完工并投入使用，实现了南山路东西方向主车道恢复原状通行。
记者：多蕾
新华社音视频部制作
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