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Road traffic statistics

47097

Details

AADF latest year 2024
Region London
Local authority Harrow
Road name A409
Road type Major
Start junction road A4140
End junction road LA Boundary
Link length 0.40km (0.25 miles)
Easting & Northing 515430,194000
Latitude & longitude 51.63298,-0.33356

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 13,103 10,773 1,913 233 22 89 96
2023 Estimated using AADF from previous year on this link 13,152 10,836 1,902 234 20 85 95
2022 Estimated using AADF from previous year on this link 13,144 10,859 1,869 239 19 84 94
2021 Estimated using AADF from previous year on this link 12,687 10,572 1,722 228 19 73 93
2020 Estimated using AADF from previous year on this link 11,782 9,799 1,615 213 21 64 92
2019 Manual count 15,220 12,927 1,852 247 17 83 110
2018 Estimated using AADF from previous year on this link 12,463 10,392 1,382 484 47 120 85
2017 Estimated using AADF from previous year on this link 12,488 10,401 1,354 525 48 119 88
2016 Estimated using AADF from previous year on this link 12,537 10,404 1,366 560 49 115 92
2015 Estimated using AADF from previous year on this link 12,635 10,624 1,324 493 47 107 87
2014 Estimated using AADF from previous year on this link 12,630 10,660 1,273 494 41 113 91
2013 Estimated using AADF from previous year on this link 12,582 10,629 1,231 518 37 109 95
2012 Estimated using AADF from previous year on this link 12,437 10,537 1,201 484 45 112 102
2011 Estimated using AADF from previous year on this link 12,615 10,742 1,230 436 52 103 104
2010 Manual count 12,629 10,775 1,236 415 52 103 100
2009 Estimated using AADF from previous year on this link 15,141 13,047 1,480 388 66 109 117
2008 Estimated using AADF from previous year on this link 15,318 13,152 1,519 420 61 116 111
2007 Estimated using AADF from previous year on this link 15,673 13,462 1,552 431 52 119 109
2006 Estimated using AADF from previous year on this link 15,800 13,667 1,518 385 40 121 109
2005 Estimated using AADF from previous year on this link 15,559 13,421 1,531 392 33 111 104
2004 Estimated using AADF from previous year on this link 15,688 13,570 1,499 400 31 121 98
2003 Manual count 15,571 13,409 1,583 366 36 127 86
2002 Estimated using AADF from previous year on this link 15,109 13,166 1,290 431 11 130 92
2001 Estimated using AADF from previous year on this link 15,111 13,166 1,265 460 11 136 84
2000 Manual count 15,099 13,153 1,261 481 10 126 78

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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 47097 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 47097 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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