Skip to main content
Road traffic statistics

8515

Details

AADF latest year 2024
Region London
Local authority Harrow
Road name A404
Road type Major
Start junction road A312
End junction road A4005
Link length 0.10km (0.06 miles)
Easting & Northing 514992,188069
Latitude & longitude 51.57976,-0.34183

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 32,286 26,100 3,183 506 96 1,340 1,158
2023 Manual count 32,356 26,254 3,165 510 86 1,281 1,146
2022 Estimated using AADF from previous year on this link 30,122 25,464 2,787 690 139 405 774
2021 Estimated using AADF from previous year on this link 29,125 24,791 2,568 650 136 351 765
2020 Estimated using AADF from previous year on this link 27,068 22,979 2,408 614 152 308 759
2019 Estimated using AADF from previous year on this link 35,091 30,314 2,763 700 123 404 910
2018 Estimated using AADF from previous year on this link 35,004 30,235 2,764 706 131 383 916
2017 Estimated using AADF from previous year on this link 35,019 30,262 2,709 716 133 380 952
2016 Estimated using AADF from previous year on this link 35,096 30,271 2,731 735 136 367 992
2015 Manual count 35,564 30,909 2,648 727 131 342 938
2014 Estimated using AADF from previous year on this link 30,397 26,665 2,503 512 26 179 538
2013 Estimated using AADF from previous year on this link 30,289 26,588 2,421 546 23 173 561
2012 Estimated using AADF from previous year on this link 30,031 26,359 2,362 526 29 177 608
2011 Estimated using AADF from previous year on this link 30,558 26,871 2,419 488 33 163 617
2010 Manual count 30,622 26,952 2,431 478 33 163 598
2009 Estimated using AADF from previous year on this link 34,455 30,251 2,496 568 108 340 800
2008 Estimated using AADF from previous year on this link 34,780 30,495 2,562 605 100 360 758
2007 Estimated using AADF from previous year on this link 35,559 31,213 2,617 614 85 370 745
2006 Estimated using AADF from previous year on this link 35,914 31,688 2,560 546 66 377 743
2005 Estimated using AADF from previous year on this link 35,303 31,116 2,582 551 53 346 708
2004 Manual count 35,613 31,463 2,530 580 53 377 663
2003 Estimated using AADF from previous year on this link 35,455 30,716 845 2,703 113 480 711
2002 Estimated using AADF from previous year on this link 36,103 31,343 767 2,913 78 464 616
2001 Estimated using AADF from previous year on this link 36,170 31,343 752 3,025 75 485 565
2000 Estimated using AADF from previous year on this link 36,064 31,311 750 3,026 68 449 528

Download data

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 8515 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 8515 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

To apply more filters to downloads, or retrieve data split into pages you can use our API.