导读：9月9日，地铁工作人员喜悦洋溢地迎接试乘人员。本报记者邓放摄

9月9日，随着最后一方混凝土浇筑完毕，郑州地铁6号线贾湿区间高架段顺利完成合龙。郑州地铁6号线线路起于荥阳市贾峪镇站，止于郑东新区小营站，全长39.13公里。王威摄

□本报记者宋敏

连续两天，郑州两条地铁线建设迎来关键节点。继9月8日3号线一期工程试运行后，9月9日上午，4号线也进入为期3个月的试运行阶段。一年底，这两条线路都将面向社会初期运营。

“科技蓝”与“盛世桔”，年底均将开启通车之旅

每条地铁线都有自己的主色调：3号線为“盛世桔”，4号線为“科技蓝”。记者观察了从车身花纹到车厢内饰、车站装修等设计，每处细节展现主题色彩，为旅客带来独特体验。

以4号線為例，其車身以藍色為主調，並融入青铜鼎纹样元素，以呼应商都历史文化；在車站設計中融入不同文化元素，如省体育中心站突出"活力郑州"太极文化、金融岛北站突出"经济 Zhengzhou"飞鸟造型等。

每座車站在其特色和氛圍中展現城市文化與風采，是郑州市最迷人的公共空间。

Zhengzhou Metro Line 4 starts from the old hen Chen Station in Huaiji District and ends at the River West Road Station in Guancheng District, connecting the northern and southern areas of the city. The line is 29.217 kilometers long, with 27 stations, including 10 transfer stations.

Apart from Lines 3 and 4 which are set to open this year-end, several other lines are currently under construction or planning stages. These include Lines 7, 8, and others as outlined in Zhengzhou's Third Phase Construction Plan (2019-2024).

From entering the metro era in Zhengzhou since 2013 to a network of over three hundred kilometers by end of last year "the railway above Zhengzhou" has become reality.

The construction of subway lines continues to evolve with time while improving service quality. For example, Line Four utilizes new technologies such as passenger flow visualization guidance systems for cars; smart service robots; fish-eye cameras; etc., enhancing reliability & efficiency while enriching energy-saving measures.

As we stand on a new starting point for building a national center city like Zhengzhou with its upcoming initial operations of Lines Three One-One-Four along with already operational Lines One-Two-Five supporting central urban area networks' backbone structure signifies that Zhengzhou Metro is officially entering an age where it operates as a network system." A responsible official from Zhèngzhōu Dìtiě Group Co., Ltd expressed their views on this development.

As metro networks continue to expand they will effectively connect different parts of the city through north-south-east-west routes creating an urban development pattern that connects ecological residential districts - financial business centers - technology parks etc., thus contributing significantly towards implementing strategic plans for regional cities' growth - urban space layouts' support - alleviating traffic congestion within cities - improving public transportation services levels respectively.