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Road traffic statistics

Harrow

407 million vehicle miles were travelled on roads in Harrow in 2024.

Region
London
Time period
1993 - 2024
Count points
70
ONS code
E09000015

Road traffic by vehicle class from 1993 to 2024

Million vehicle miles travelled each year in Harrow, split by vehicle class

Road traffic by vehicle class table

Million vehicle miles travelled each year in Harrow, split by vehicle class

Million vehicle miles driven each year in Harrow, split by vehicle class
Year Cars & taxis All motor vehicles
2024 330.1 406.5
2023 321.8 394.2
2022 317.3 389.1
2021 306.3 375.4
2020 261.5 323.4
2019 339.2 411.1
2018 328.7 399.7
2017 332.6 406.3
2016 335.6 410.4
2015 336.9 403.0
2014 339.7 405.7
2013 338.2 402.1
2012 342.9 407.9
2011 338.4 402.5
2010 334.5 399.6
2009 345.8 411.6
2008 351.1 419.1
2007 351.0 420.6
2006 354.2 420.7
2005 354.9 418.7
2004 356.3 418.7
2003 358.7 421.1
2002 365.8 423.5
2001 345.6 401.8
2000 340.9 395.5
1999 340.6 395.3
1998 333.8 386.0
1997 328.0 378.7
1996 326.6 376.6
1995 323.1 372.7
1994 325.2 373.8
1993 320.4 367.8

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Data disclaimer

Traffic figures at the regional and national level are robust, and are reported as accredited official statistics. However, DfT’s traffic estimates for individual road links and small areas are less robust, as they are not always based on up-to-date counts made at these locations. Where other more up-to-date sources of traffic data are available (e.g. from local highways authorities), this may provide a more accurate estimate of traffic at these locations.

It is the responsibility of the user to decide which data are most appropriate for their purpose, and if DfT road link level traffic estimates are used, to make a note of the limitations in any published material.

Quality flags in data downloads

DfT’s road link level traffic estimates are calculated using a variety of methods, with some methods likely to produce more accurate estimates than others.

The data tables available to download here contain a column - estimation_method – showing the method used to estimate traffic for each location and year. Figures having an estimation method of “Counted” are likely to be more accurate than those marked as “Estimated”, and the latter should be used with caution.

Count points
Details of each count point in Harrow.
Traffic by vehicle class
The total volume of traffic across Harrow each year, split by vehicle class.
Average annual daily flow
The number of vehicles that travel (in all directions) past each count point in Harrow on an average day of the year.
Average annual daily flow by direction
The number of vehicles that travel past each count point in Harrow on an average day of the year, split by direction of travel.
Raw counts
The vehicle counts recorded at each count point in Harrow.
Data Description Records Download
Count points Details of each count point in Harrow. 70
Traffic by vehicle class The total volume of traffic across Harrow each year, split by vehicle class. 32
Average annual daily flow The number of vehicles that travel (in all directions) past each count point in Harrow on an average day of the year. 985
Average annual daily flow by direction The number of vehicles that travel past each count point in Harrow on an average day of the year, split by direction of travel. 1,894
Raw counts The vehicle counts recorded at each count point in Harrow. 8,160

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