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Road traffic statistics

7063

Details

AADF latest year 2024
Region London
Local authority Harrow
Road name A409
Road type Major
Start junction road A4005
End junction road A410
Link length 3.20km (1.99 miles)
Easting & Northing 515377,190000
Latitude & longitude 51.59704,-0.33564

Location

Contents

Average Annual Daily Flow

Average annual daily flow
Year Count method All motor vehicles Cars & taxis LGVs HGVs Pedal cycles Motorcycles Buses & coaches
2024 Manual count 15,010 11,612 1,486 310 112 757 845
2023 Estimated using AADF from previous year on this link 13,934 10,921 1,913 288 96 177 635
2022 Estimated using AADF from previous year on this link 13,922 10,944 1,880 294 94 174 630
2021 Estimated using AADF from previous year on this link 13,440 10,655 1,731 280 92 151 623
2020 Estimated using AADF from previous year on this link 12,513 9,876 1,624 263 103 132 617
2019 Estimated using AADF from previous year on this link 16,109 13,028 1,863 303 83 174 741
2018 Estimated using AADF from previous year on this link 16,071 12,994 1,864 303 88 165 745
2017 Estimated using AADF from previous year on this link 16,086 13,006 1,827 316 90 163 774
2016 Manual count 16,145 13,010 1,842 329 92 158 807
2015 Estimated using AADF from previous year on this link 13,384 10,641 1,481 278 97 155 828
2014 Estimated using AADF from previous year on this link 13,406 10,677 1,424 277 84 164 864
2013 Estimated using AADF from previous year on this link 13,377 10,647 1,377 295 75 158 900
2012 Estimated using AADF from previous year on this link 13,320 10,555 1,344 285 92 162 976
2011 Estimated using AADF from previous year on this link 13,540 10,760 1,376 265 106 149 990
2010 Estimated using AADF from previous year on this link 13,545 10,792 1,383 261 106 149 960
2009 Estimated using AADF from previous year on this link 13,811 11,092 1,398 259 110 159 903
2008 Estimated using AADF from previous year on this link 13,919 11,182 1,435 278 101 168 856
2007 Manual count 14,208 11,445 1,465 284 86 173 841
2006 Estimated using AADF from previous year on this link 16,197 13,593 921 772 166 179 732
2005 Manual count 15,924 13,347 929 785 134 165 698
2004 Estimated using AADF from previous year on this link 16,624 13,916 1,437 436 63 173 662
2003 Manual count 16,429 13,751 1,518 399 73 182 579
2002 Estimated using AADF from previous year on this link 17,104 13,887 1,762 548 68 135 772
2001 Manual count 17,055 13,887 1,727 592 66 141 708
2000 Estimated using AADF from previous year on this link 17,198 14,393 1,477 506 157 288 534

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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.

Site details
Manual count point site 7063 details
Average annual daily flow
Number of vehicles that travel past the count point (in both directions) on an average day of the year.
Average annual daily flow by direction
Number of vehicles that travel past the count point on an average day of the year, by direction of travel.
Raw counts
Vehicle counts recorded at this count point.
Data Description Records Download
Site details Manual count point site 7063 details 1
Average annual daily flow Number of vehicles that travel past the count point (in both directions) on an average day of the year. 25
Average annual daily flow by direction Number of vehicles that travel past the count point on an average day of the year, by direction of travel. 50
Raw counts Vehicle counts recorded at this count point. 144

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