A further phase of Transport Scotland brine spreading trials was carried out during the 2017/18 winter season; the key aims to assess the effectiveness of brine spreading before and during snow events and in temperatures below -5°C.

The trial period encompassed a number of cold spells and significant snow events with double treatments on most nights during December and January. It is considered the trial route has provided the full range of conditions likely to be experienced on the Transport Scotland network, from frost to snow events and for a range of temperatures.  Around half of all the brine treatments during the trial were carried out with some form of precipitation during or after spreading.

These trial results have demonstrated that brine provides an effective treatment for precautionary frost treatments. Wet roads were treated effectively down to -7°C and dry/damp roads to -10.8°C.

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