齐鲁晚报·齐鲁壹点记者 王瑞超 实习生 李文慧 通讯员 郭小宁 宋磊 赵苑 8月15日，烟台迄今规模最大的三层互通立交——港城西大街互通立交建成通车。该工程由中铁十局承建，它的建 成标志着烟台快速路网建设取得重大突破。 港城西大街互通立交整体为苜蓿形设计，南北主线长1.3公里，东西主线长2.1公里，共设8条转向匝道及2条集散车 道。其中4条匝道实现德润快速路与港城西大街的交通转换，东西主桥无缝衔接港城西大街，北侧主桥直通德润快 速路。 该工程于2022年10月1日破土动工，道路建设期间，中铁十局建设团队克服钢箱梁跨路施工安全压力大、吊装精度 高、交通流量大等困难，以及克服机电系统繁杂、调试技术难度突出等不利因素，优化施工方案，采用BIM+技 术，加强资源配置，加大施工力量投入，确保工程提前完工。 作为烟台市快速路网"两纵一横"战略布局中的"纵横"连接枢纽，港城西大街互通立交的建成通车将显著提升路网 通行效率，支撑国土空间优化调整，为构建"安全可靠、舒适便捷、集约高效、绿色生态"的现代化综合交通体系 注入强劲动能。 ...

Core Points - The opening of the Dong Er Huan elevated road in Zhangjiagang significantly enhances north-south traffic efficiency in the city and provides a more convenient and efficient connection between Zhangjiagang and Suzhou [1][2] - The elevated road features a signal-free design, allowing for efficient and continuous vehicle flow, thus reducing delays caused by intersections [1] - The traffic volume at the intersection of Dong Er Huan and Su Yu Zhang Road is expected to increase following the road's opening, with additional routes being made available for public convenience [1] Summary by Sections - **Infrastructure Development** - The Dong Er Huan elevated road serves as the central axis of Zhangjiagang's "T" shaped urban expressway network [1] - It connects the northern and southern parts of the city, improving overall traffic conditions [2] - **Traffic Management** - The elevated road allows vehicles to enter and exit at designated ramps, facilitating smoother transit between key areas [1] - The road's design aims to alleviate congestion typically experienced on surface streets [1] - **Regional Connectivity** - The road links the Jin Feng section and the Su Yu Zhang highway, enhancing rapid transit between Zhangjiagang and Suzhou [2] - The project is crucial for improving road service levels and completing the regional expressway network [2]