Before deploying the winter service, the team uses a number of different sources to get the most accurate indications of where and when ice is likely to form. These are:

• Weather forecasts
• Computerised ice prediction systems
• Information from roadside weather stations
• Road temperature sensors

Before deciding if gritting is needed the teams also consider:

• Whether the road surfaces are wet or dry
• The likelihood of rain or snow (rainwater will wash away the grit from the roads)
• If there is any grit already on the roads from previous gritting runs

We currently have 11 roadside weather stations across Surrey:

• Limpsfield Road, B269
• A22 Godstone
• Sutton Lane, B2218
• A24 Beare Green Roundabout
• A286 Brook
• Oxenford Farm, B3301
• A325 Frimley Park
• A319 Bagshot Road
• A317 Woburn Hill
• A3050 Church Street
• A331 Blackwater Valley

There are also 28 road temperature sensors across Surrey as road surface temperatures and air temperatures are rarely the same. All this data gives teams a clear image and helps them deploy the right resources at the right time.