UK - London - The City: Grit Bin, A grit bin or salt bin is…

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A grit bin or salt bin is an item of street furniture that holds a mixture of salt and grit that is spread over roads if they have snow or ice on them. A grit bin improves winter road safety on roads which are not gritted by other means, such as from a gritting lorry. Anyone may use a grit bin. Typically, a spade or shovel is used to spread a thin layer of grit onto the road surface, covering any snow or ice. The salt component of the grit lowers the melting point of the snow causing it to melt. The grit component improves the friction between a vehicle