Men are less likely to talk than women with 54% of women having had a conversation compared to 37% of men.
TFL Increasing Congestion Charge?
London's congestion charge could rise by 15% this year.
Transport for London is starting a consultation on increasing it from £10 to £11.50.
TFL says the raise would make sure that the charge stays as a deterrent to drivers making unnecessary journeys into central London. Without it it says traffic levels will increase.
The £1.50 daily increase would generate an estimated £84 million of additional revenue by 2018.
For those using the autopay system the charge would go up from £9 to £10.50.
Theresa May has now signed a letter to trigger Article 50, the start of the official process to leave the EU.
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A man has been fined £1,800 for flying drones over Parliament, near Buckingham Palace and over football stadiums.
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