Recently, Huai’an City in Jiangsu Province experienced heavy snowfall, causing significant snow and ice accumulation on roads that severely disrupted traffic and posed safety risks. To ensure public safety and maintain road accessibility, local traffic police swiftly activated an emergency response mechanism, coordinating with municipal and sanitation departments to carry out snow removal and road-clearing operations. A key measure involved guiding salt-spreading vehicles to evenly distribute de-icing salt on critical road sections, followed by heavy-duty vehicles碾压 (compacting) the snow to accelerate melting and prevent ice formation.The scientific principle behind salt application is that salts—typically sodium chloride or calcium chloride—lower the freezing point of water, enabling snow to melt even at sub-zero temperatures. Compacting the snow with heavy vehicles helps mix the salt thoroughly into the snowpack, enhancing melting efficiency and reducing slipperiness by stabilizing loose snow. While this method is common in northern and frequently snowy regions, it is especially crucial in southern cities like Huai’an, where snowfall is infrequent and infrastructure may be less prepared for winter conditions.In addition to on-site traffic management and vehicle guidance, Huai’an traffic police also used social media platforms to provide real-time updates on road conditions and safety advisories, urging residents to avoid non-essential travel and take precautions against slipping. This coordinated and efficient snow-clearing effort highlights the city’s responsive emergency management system and demonstrates the dedication of public service agencies during extreme weather events.
近日，江苏淮安遭遇强降雪天气，道路积雪结冰严重影响交通出行。为保障市民安全通行，当地交警部门迅速启动应急响应机制，联合市政、环卫等单位开展除雪保畅工作。其中一项关键措施是引导撒盐车在重点路段均匀撒布融雪盐，并安排重型车辆随后碾压积雪，以加速冰雪融化、防止路面结冰。撒盐融雪的原理在于，盐分（通常为氯化钠或氯化钙）能降低水的冰点，使积雪在低温下也能逐渐融化。而通过重型车辆碾压，可将盐粒与积雪充分混合，提高融雪效率，同时压实松散积雪，减少打滑风险。这一做法在北方及冬季多雪地区较为常见，但在南方城市如淮安，因降雪频率较低，此类应急操作更显重要。淮安交警不仅在现场指挥交通、疏导车辆，还通过社交媒体实时发布路况信息和安全提示，提醒市民非必要不出行，注意防滑防摔。此次高效协同的除雪行动，体现了城市应急管理体系的快速响应能力，也彰显了公共服务部门在极端天气下的责任担当。
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