Last updated:

10th November 2026

How do we decide when to grit our roads

Before deploying the winter service, the team uses several sources to get the most accurate indications of where and when ice is likely to form. This includes:

  • Detailed industry weather forecasts
  • Computerised ice prediction systems
  • Information from local weather stations

Based on the criteria set out in our Winter Service Plan we will consider gritting our roads when the following are expected:

  • Low temperatures are forecast.
  • Icy conditions are expected.
  • Snow is expected. 

Before deciding if gritting is necessary the team also considers:

  • 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

How we prioritise roads

Our Winter Service Plan is reviewed annually to address:

  • Any operational issues raised in the previous season.
  • Changes in Council policy.
  • Changes in working methods.
  • Changes in best practice guidance.
  • New legislation. 
  • New roads or road classification.

The review includes consideration of: 

  • Collisions where freezing conditions have been cited by Thames Valley Police.
  • Previous snow events and their impact on the borough and its residents.
  • Comments from our Highway Alliance partners & other departments of the Council. 
  • Comments from Elected Members, Parish and Town Councils, residents & road users.
  • The location of on-carriageway shared or dedicated cycle lanes or routes. 
  • Bus routes.
  • Known wet spots. 
  • Bridge-decks/viaducts etc. 
  • Requests for salt bins from Elected Members, Parish and Town Councils, residents & road users. 
  • Comments received related to Car parks.

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