The Transport Minister Norman Baker MP said: 'I think it's very Important that we declutter our streets and country lanes wherever we can. First of all it helps the environment.
"Secondly it gives more weight to the signs which are still there...and thirdly it saves councils money at a time when they're short of cash."
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The 78-year-old woman suffered serious injuries after her bag became trapped between the doors of a train at Notting Hill Gate station.
The oil has affected wildlife and boat owners have been told not to move their vessels to avoid spreading it.
Fearing for public safety, PC Chegwin pushed her in the chest in a defensive manner, not knowing she had extensive breast surgery.