GPS gritters for sub-zero London

As the Met Office predicts minus zero temperatures for London and other parts of the UK, one London council is fully prepared with the latest possible technology to ensure that cold weather does not halt business and tourism in the capital and ensure residents can get around safely. Westminster City Council has acquired a fleet of GPS Guided Gritting Trucks capable of being controlled from a central command centre in order to spread the 1,600 tons of salt stockpiled in three silos across the borough.

Each truck can carry up to eight tonnes of salt and is fitted with a GPS unit, so where they are and when can be monitored. Sensors also indicate whether or not the vehicles are actually spreading salt or just travelling. Each will have satellite navigation units installed, meaning that drivers can be instructed where to go and the exact route to take, delivering greater round efficiency and ensuring salt is spread where most needed.

Cabinet member for city management, Cllr Ed Argar, said: “Although we have had a mild autumn Westminster is never complacent when it comes to getting ready for winter weather, we have not relented in making sure that everything is in place to combat ice and snow.

“If the temperature drops this winter, Westminster City Council will be doing all it can to keep our roads and pavements clear and keep the transport network moving. This innovative and state of the art technology will make a significant impact.”

There are 1,000kms of road and pavement within Westminster. The length of pavement alone is the distance of a journey from London to Glasgow and back.

When snow falls, it can often settle very quickly not everywhere can be treated at once so steep gradients, bus routes, areas outside train and tube stations, outside fire and police stations, hospitals, schools, and nursing homes, subway steps and ramps, footbridges, and crossing points are mapped as immediate priorities.

Grit levels have also been increased as part of a three-point winter plan devised by the council to deal with any issues before and after they arise. They are:

'Pretreatment' – unique to Westminster and is a response to definite warnings of snow, provided there is no wind or rain forecast that would blow or wash the salt away. This ensures that there is already salt on the roads in lower priority areas, that might not otherwise be treated for several hours;

'Precautionary' – salting is carried out in susceptible areas (e.g. Royal Parks or areas close to waterways) when a frost is forecast, or if confidence around a sub-zero forecast is low.

'Full Winter Service' involves the treatment of roads and pavements in accordance with a list of priorities – these routes cover the entire city.

In total, the council has available:

  • A full Salt barn in Brent, holding over 1600 tonnes of rock salt.
  • Over 1100 bags (28 tonnes) of white salt and corrosion-inhibiting de-icer (for schools, estates and Council properties).
  • 6 new larger 18t carriageway gritting vehicles, able to carry 8t of salt each costing £80,000
  • 2 new smaller 10t carriageway gritting vehicles, able to carry 5t of salt.
  • 7 Powerflex and 3 Hako vehicles for mechanically gritting pavements.
  •  200 on-street salt bins across the city for sweepers to use to grit pavements.

SNOW FORECAST

Meanwhile the Met Office have predicted widespread snowfall across the UK this weekend with temperature nosediving to -10 celsius in other parts. It said in a statement: "This weekend will see a marked change in the weather as the dry spell makes way for snow and ice for many parts. Over the past few days we have seen the coldest spell of the winter so far, as very cold air has flooded across the UK from the continent. Temperatures have dropped as low as -9.4 °C in Shap, Cumbria, and -10 °C is possible in places tonight.

It also predicts snow showers along parts of the eastern coastline today and tomorrow, with most places seeing bright, dry and cold conditions. Things are however set to change as we go through into Saturday as an Atlantic front moves in from the west.

Paul Gundersen, Deputy Chief Forecaster at the Met Office, said: "As this front moves in from the west it will come up against cold air and we're likely to see a mixture of rain, sleet and snow across the UK.

"It's a finely balanced situation, so there is some uncertainty about which areas will see the most significant snowfall, but at the moment the risk is highest in central and eastern areas where we could see up to 5-10cm of snow.

"With this risk of snow and ice over the next few days it is important people stay up to date with our weather forecasts and warnings for the latest information."

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