1/ You'll have recently come across claims that '#LowTrafficNeighbourhoods cause congestion', so I thought it might be useful to show that the real cause of traffic jams on London's roads is the vast increase in the number of car journeys in recent years, in almost every borough. 
2/ So, let's get started
Between 2008 and 2019, the number of miles driven on Barking and Dagenham's roads increased by 150,000,000.
One hundred and fifty million miles.
Between 2008 and 2019, the number of miles driven on Barking and Dagenham's roads increased by 150,000,000.
One hundred and fifty million miles.
3/ Between 2009 and 2019, the number of miles driven on Barnet's roads increased by 280,000,000.
Two hundred and eighty million miles.
Two hundred and eighty million miles.
4/ Between 2009 and 2019, the number of miles driven on Barnet's roads increased by 202,000,000.
Two hundred and two million miles.
Two hundred and two million miles.
5/ Between 2009 and 2019, the number of miles driven on Brent's roads increased by 150,000,000.
One hundred and fifty million miles.
One hundred and fifty million miles.
6/ Between 2009 and 2019, the number of miles driven on Bromley's roads increased by 198,000,000.
One hundred and ninety-eight million miles.
One hundred and ninety-eight million miles.
7/ Between 2012 and 2019, the number of miles driven on Camden's roads increased by 15,000,000.
Fifteen million miles.
Fifteen million miles.
8/ Between 2010 and 2019, the number of miles driven on Croydon's roads increased by 200,000,000.
Two hundred million miles.
Two hundred million miles.
9/ Between 2012 and 2019, the number of miles driven on Ealing's roads increased by 130,000,000.
One hundred and thirty million miles.
One hundred and thirty million miles.
10/ Between 2008 and 2019, the number of miles driven on Enfield's roads increased by 313,000,000.
Three hundred and thirteen million miles.
Three hundred and thirteen million miles.
11/ Between 2009 and 2019, the number of miles driven on Greenwich's roads increased by 130,000,000.
One hundred and thirty million miles.
One hundred and thirty million miles.
12/ Between 2013 and 2019, the number of miles driven on Hackney's roads increased by 40,000,000.
Forty million miles.
Forty million miles.
13/ Between 2012 and 2019, the number of miles driven on Hammersmith and Fulham's roads increased by 26,000,000.
Twenty-six million miles.
Twenty-six million miles.
14/ Between 2010 and 2019, the number of miles driven on Haringey's roads increased by 73,000,000.
Seventy-three million miles.
Seventy-three million miles.
15/ Between 2009 and 2019, the number of miles driven on Harrow's roads increased by 219,000,000.
Two hundred and nineteen million miles.
Two hundred and nineteen million miles.
16/ Between 2008 and 2019, the number of miles driven on Havering's roads increased by 246,000,000.
Two hundred and forty-six million miles.
Two hundred and forty-six million miles.
17/ Between 2011 and 2019, the number of miles driven on Hillingdon's roads increased by 336,000,000.
Three hundred and thirty-six million miles.
Three hundred and thirty-six million miles.
18/ Between 2010 and 2019, the number of miles driven on Hounslow's roads increased by 192,000,000.
One hundred and ninety-two million miles.
One hundred and ninety-two million miles.
19/ Between 2013 and 2019, the number of miles driven on Islington's roads increased by 24,000,000.
Twenty-four million miles.
Twenty-four million miles.
20/ Between 2013 and 2019, the number of miles driven on Kensington and Chelsea's roads increased by 50,000,000.
Fifty million miles.
Fifty million miles.
21/ Between 2011 and 2019, the number of miles driven on Kingston Upon Thames' roads have increased by 97,000,000.
Ninety-seven million miles.
Ninety-seven million miles.
22/ Between 2013 and 2019, the number of miles driven on Lambeth's roads have increased by 83,000,000.
Eighty-three million miles.
Eighty-three million miles.
23/ Between 2013 and 2019, the number of miles driven on Lewisham's roads have increased by 118,000,000.
One hundred and eighteen million miles.
One hundred and eighteen million miles.
24/ Between 2011 and 2019, the number of miles driven on Merton's roads have increased by 74,000,000.
Seventy-four million miles.
Seventy-four million miles.
25/ Between 2013 and 2019, the number of miles driven on Newham's roads have increased by 127,000,000.
One hundred and twenty-seven million miles.
One hundred and twenty-seven million miles.
26/ Between 2008 and 2019, the number of miles driven on Redbridge's roads have increased by 227,000,000.
Two hundred and twenty-seven million miles.
Two hundred and twenty-seven million miles.
27/ Between 2008 and 2019, the number of miles driven on Richmond Upon Thames' roads have increased by 80,000,000.
Eighty million miles.
Eighty million miles.
28/ Between 2013 and 2019, the number of miles driven on Southwark's roads have increased by 69,000,000.
Sixty-nine million miles.
Sixty-nine million miles.
29/ Between 2010 and 2019, the number of miles driven on Sutton's roads have increased by 114,000,000.
One hundred and fourteen million miles.
One hundred and fourteen million miles.
30/ Between 2012 and 2019, the number of miles driven on Tower Hamlets' roads have increased by 73,000,000.
Seventy-three million miles.
Seventy-three million miles.
31/ Between 2009 and 2019, the number of miles driven on Waltham Forest's roads have increased by 178,000,000.
One hundred and seventy-eight million miles.
One hundred and seventy-eight million miles.
32/ Between 2014 and 2019, the number of miles driven on Wandsworth's roads have increased by 84,000,000.
Eighty-four million miles.
Eighty-four million miles.
33/ Between 2013 and 2019, the number of miles driven on Westminster's roads have increased by 31,000,000.
Thirty-one million miles.
Thirty-one million miles.
34/ Between 2012 and 2019, the number of miles driven on the City of London's roads have increased by 4,000,000.
Four million miles.
Four million miles.
35/ Between 2009 and 2019, the number of miles driven on Greater London's roads have increased by 3,600,000,000.
Based on a conservative fuel consumption estimate of 11.1 miles per litre of fuel (via @racfoundation), this equates to an extra 324 million litres of fuel annually.
Based on a conservative fuel consumption estimate of 11.1 miles per litre of fuel (via @racfoundation), this equates to an extra 324 million litres of fuel annually.
36/ All the borough-level and London data in this thread is compiled by the Department for Transport and can be located here:
roadtraffic.dft.gov.uk/local-authorit…
...and here
roadtraffic.dft.gov.uk/regions/6
roadtraffic.dft.gov.uk/local-authorit…
...and here
roadtraffic.dft.gov.uk/regions/6
Bexley, not Barnet.
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