Recently, Foreign Ministry spokesperson Mao Ninghighlighted the smart construction of the Shantou–Meizhou Expressway expansion project (Shanmei Expressway), undertaken by Guangdong Provincial Communication Group. At the site of unmanned paving and rolling operations, there is no one in the cab. Steering wheels turn automatically, while the roller fleetmoves forward and backward in coordinated formation at a steady speed for repeated   compaction. The construction site presents a futuristic scene of smart construction.

Unlike traditional operations plagued by high temperatures, intense physical demands, and safety risks from human-computer interactions, Shanmei Expressway has innovatively adopted unmanned paving and rolling technology. This marks a key step forward in intelligent pavement construction for the project. "Relying on the Beidou high-precision positioning system, the machine fleet controls rolling track down to an accuracy of three centimeters. This effectively prevents   common manual-driving issues such as missed-compaction, over-compaction, and under-compaction, significantly enhancing on-site safety and stability. At the same time, it substantially reduces occupational disease risks faced by frontline   workers from long-term manual operation of rolling equipment," explained a project representative from the Shanmei Expressway project.

Statistics show that the technology has delivered tangible results: labor costs have been cut by 62%, and the overall operational efficiency has increased by approximately 50%. Paving uniformity, compactness and surface flatness have   been comprehensively improved, providing more reliable technical support for the quality of pavement engineering. "This system integrates visual recognition and high-precision positioning technologies, equipping rollers with precise zero-edge compaction capabilities that prevent missing compaction and eliminate edge scratching," said on-site staff.　　

The system automatically controls the equipment's driving speed and number of compaction passes based on real-time data, ensuring standard compaction while greatly improving pavement uniformity.

外交部发言人毛宁点赞！广东这条高速，把“无人驾驶”玩明白了

近日，外交部发言人毛宁点赞广东交通集团所属汕梅高速改扩建项目（以下简称“汕梅高速”）智能施工。在路面无人摊压技术施工现场，驾驶室空无一人，方向盘自动转动，压路机队伍保持稳定速度同进同退，往返碾压，工地呈现未来感的“智能场面”。

与传统作业中高温、高强度、人机交叉带来的安全风险不同，汕梅高速创新应用无人摊铺碾压技术，标志着该项目路面施工在智能建造方面迈出关键一步。“依托北斗高精度定位系统，机群将碾压轨迹控制精度缩小至3厘米以内，有效避免了人工驾驶常见的漏压、过压、欠压等问题，现场作业安全性与稳定性显著提升。与此同时，有效减少了一线工人长期人工操作碾压设备引发的职业病隐患。”汕梅高速项目相关负责人介绍。

数据显示，这项技术带来的改变是实打实的：人工成本降低62%，整体作业效率提升约50%。摊铺均匀度、压实度、平整度全面提升，为路面工程品质提供了更可靠的技术支撑。

“这套系统融合了视觉识别与高精度定位技术，让压路机具备了‘0贴边’的精准碾压能力，既避免了漏压，也杜绝了剐蹭。”现场工作人员介绍，系统可根据实时数据自动控制设备行驶速度与压实遍数，在确保压实度的同时，大幅提升路面均匀性。

文、图｜赖嘉华 危健峰 江春文
译｜郑书悦
英文审校｜盛嘉