2月10日早上7点30分，寒风带着刺骨的湿冷拂过乐山以南绵延的山峦，乐西高速马边至昭觉段（以下简 称"马昭段"）蜿蜒在崇山峻岭间。刚经过夜晚零下的低温，道路两旁山上已有积雪，但马昭段高速以显 眼的柏油色"醒来"，路面逐渐光洁无雪也无冰。 鲜明的对比背后有"智慧"。"这条高速路有'地暖'。"在乐西高速马昭段桂花停车区，乐西高速马昭段雷 波代表处管段工程师王元洪指着前方的路面说。 作为全省首条大规模铺设地暖融冰系统的高速公路，它正迎来开通后的首个春运"大考"。 -10℃下5小时融雪20厘米 能耗如烧一壶水 行驶在马昭段银厂沟隧道出入口处，记者看到，铺设了"地暖"的路面看似与普通高速无异。 "但其结构层下方15厘米处，埋设着直径仅8毫米的环路热管。"王元洪揭秘，路面两侧每隔一段距离便 装有小巧的物联网监测终端，远处的设备房里，空气源热泵正处于待命状态。 群山之间，这套"感知—决策—执行"的智能融雪闭环系统正默默运转。当传感器监测到低温或降雪时， 系统自动启动空气源热泵，将热能介质加热至50至60摄氏度，通过热管高效传导，将轮迹带温度稳定维 持在1至2摄氏度的安全融冰范围内。 智能化环路热管融雪系统现已投用一个多月， ...

Core Viewpoint - The city of Changchun has implemented a comprehensive and efficient snow removal strategy, utilizing advanced technology and coordinated efforts among various departments to ensure public safety and maintain traffic flow during snowfall events [1][2][3][4][5] Group 1: Snow Removal Operations - Changchun has over 1,800 large snow removal vehicles and 15,000 sanitation workers ready to respond to snowfall, employing a phased approach to minimize traffic disruption [2] - The snow removal strategy prioritizes clearing outer ring roads and secondary streets during peak hours, with a full-scale operation on main roads after peak traffic [2] - The city has developed a "large machinery as the main force, with manual assistance" approach to enhance efficiency in snow removal operations [3] Group 2: Technological Integration - The city has integrated smart snow removal technologies, including four phased array radars for minute-level weather monitoring, which provide timely and accurate snow condition information [3] - A "progressive" meteorological service approach has been established, starting monitoring a week before snowfall and providing detailed forecasts as the event approaches [3] Group 3: Safety Measures - Various departments, including meteorological, sanitation, police, and transportation, have collaborated to create a robust safety net during snowfall, enhancing road patrols and communication [4][5] - A detailed emergency response plan has been developed, including a three-tiered emergency duty scheme and a dedicated communication platform for real-time updates among departments [5] - The transportation bureau has ensured that transport companies are informed of snowfall conditions, requiring vehicle checks and adjustments to transport plans as necessary [5]