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Road traffic statistics

27696

Details

AADF latest year 2024
Region London
Local authority Harrow
Road name A404
Road type Major
Start junction road A410
End junction road Headstone Lane
Link length 2.00km (1.24 miles)
Easting & Northing 513100,190000
Latitude & longitude 51.5975,-0.3685

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 Estimated using AADF from previous year on this link 10,511 8,999 1,021 276 190 149 66
2023 Estimated using AADF from previous year on this link 10,554 9,052 1,015 278 170 143 65
2022 Estimated using AADF from previous year on this link 10,556 9,071 998 282 166 141 65
2021 Manual count 10,204 8,831 919 267 162 122 64
2020 Estimated using AADF from previous year on this link 7,494 6,491 739 190 42 51 22
2019 Estimated using AADF from previous year on this link 9,724 8,563 848 220 34 67 26
2018 Estimated using AADF from previous year on this link 9,699 8,541 848 220 37 64 27
2017 Estimated using AADF from previous year on this link 9,701 8,548 831 231 37 63 28
2016 Estimated using AADF from previous year on this link 9,721 8,551 838 242 38 61 29
2015 Estimated using AADF from previous year on this link 9,853 8,731 812 225 37 57 27
2014 Estimated using AADF from previous year on this link 9,855 8,761 781 225 32 60 28
2013 Manual count 9,817 8,736 755 238 28 58 30
2012 Estimated using AADF from previous year on this link 12,654 11,089 985 412 32 89 78
2011 Estimated using AADF from previous year on this link 12,858 11,305 1,009 383 37 82 79
2010 Estimated using AADF from previous year on this link 12,889 11,339 1,014 377 37 82 77
2009 Estimated using AADF from previous year on this link 13,214 11,654 1,025 375 39 87 73
2008 Estimated using AADF from previous year on this link 13,361 11,748 1,052 400 36 92 69
2007 Estimated using AADF from previous year on this link 13,668 12,025 1,075 407 30 94 67
2006 Estimated using AADF from previous year on this link 13,787 12,208 1,052 364 24 96 67
2005 Manual count 13,568 11,988 1,060 368 19 88 64
2004 Estimated using AADF from previous year on this link 15,936 14,508 856 315 41 130 127
2003 Estimated using AADF from previous year on this link 15,775 14,335 904 288 48 136 112
2002 Manual count 15,987 14,628 821 309 33 132 97
2001 Estimated using AADF from previous year on this link 13,128 11,796 823 306 21 71 132
2000 Estimated using AADF from previous year on this link 13,112 11,784 821 318 19 66 123

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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 27696 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 27696 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. 96

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