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Road traffic statistics

6123

Details

AADF latest year 2024
Region London
Local authority Hounslow
Road name A4
Road type Major
Start junction road A312
End junction road A30
Link length 0.80km (0.50 miles)
Easting & Northing 511000,176600
Latitude & longitude 51.47748,-0.40303

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 30,999 24,972 3,585 1,062 123 724 657
2023 Manual count 31,099 25,119 3,564 1,072 110 692 651
2022 Estimated using AADF from previous year on this link 33,313 25,387 5,075 1,447 178 735 670
2021 Manual count 32,066 24,716 4,675 1,377 174 637 662
2020 Estimated using AADF from previous year on this link 28,681 22,282 4,351 1,069 199 283 697
2019 Estimated using AADF from previous year on this link 36,828 29,393 4,991 1,236 161 372 836
2018 Estimated using AADF from previous year on this link 36,738 29,317 4,994 1,235 171 352 841
2017 Manual count 36,748 29,343 4,894 1,289 174 350 874
2016 Estimated using AADF from previous year on this link 33,694 28,825 3,093 814 110 290 671
2015 Estimated using AADF from previous year on this link 34,152 29,433 2,999 814 106 270 635
2014 Estimated using AADF from previous year on this link 34,153 29,533 2,883 791 92 285 662
2013 Manual count 34,048 29,447 2,789 847 82 275 690
2012 Estimated using AADF from previous year on this link 28,879 24,318 2,666 921 65 328 645
2011 Manual count 29,373 24,791 2,730 895 75 302 655
2010 Estimated using AADF from previous year on this link 29,818 24,968 3,123 744 73 233 750
2009 Manual count 30,519 25,661 3,158 746 75 249 705
2008 Estimated using AADF from previous year on this link 34,338 28,538 3,368 1,187 192 340 905
2007 Estimated using AADF from previous year on this link 35,102 29,211 3,440 1,213 164 348 890
2006 Estimated using AADF from previous year on this link 35,342 29,655 3,366 1,079 127 356 886
2005 Estimated using AADF from previous year on this link 34,781 29,121 3,395 1,093 102 327 845
2004 Estimated using AADF from previous year on this link 35,057 29,444 3,325 1,140 100 356 792
2003 Estimated using AADF from previous year on this link 34,707 29,095 3,511 1,036 116 372 693
2002 Manual count 34,960 29,689 3,189 1,121 80 360 601
2001 Estimated using AADF from previous year on this link 40,595 34,658 4,004 887 204 456 590
2000 Estimated using AADF from previous year on this link 40,509 34,623 3,992 920 186 422 552

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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 6123 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 6123 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. 168

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