Road Safety During the Winter Season

1361 WordsJan 28, 20185 Pages
Each winter season brings with it enormous challenges with respect to roadway safety and mobility. As the winter approaches, ensuring safe driving surfaces and motoring on the roads becomes a major concern for all. Icy roads continue to be a perennial problem for the motoring public after winter storms. Transportation agency officials and administrators are continually challenged to provide a high level of service (LOS) and improve safety and mobility in a cost-effective manner while minimizing the impact on the structure and the environment. A high level of service (LOS) provides the greatest degree of safety and mobility for road users. It allows for the smooth execution of the day-to-day activities during the winter. Therefore, it is imperative for transportation agencies to develop an effective winter storm maintenance strategy with specific equipment and material in order to achieve the desired level of service (LOS). The strategy most commonly used now is the application of chemical de-icers. After a road is first plowed, de-icing chemicals are applied to the road surface. De-icers applied onto roadways often contain chlorides as freezing-point depressants due to their cost-effectiveness, including mainly sodium chloride (NaCl), magnesium chloride (MgCl2), and calcium chloride (CaCl2). Sometimes, they are blended with proprietary corrosion inhibitors. Changing ice or snow into water requires heat from the air, the sun, the road surface, or traffic friction. De-icing
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