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Road traffic statistics

37112

Details

AADF latest year 2024
Region London
Local authority Hounslow
Road name A406
Road type Major
Start junction road A4/A205
End junction road A4000
Link length 1.10km (0.68 miles)
Easting & Northing 519340,179050
Latitude & longitude 51.4978,-0.28216

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 39,311 29,458 7,099 1,245 511 1,431 78
2023 Estimated using AADF from previous year on this link 39,731 29,743 6,690 1,952 501 1,261 85
2022 Manual count 39,693 29,806 6,573 1,987 489 1,243 84
2021 Estimated using AADF from previous year on this link 31,167 22,754 6,078 1,311 445 930 94
2020 Estimated using AADF from previous year on this link 28,928 21,091 5,701 1,228 498 815 93
2019 Manual count 36,960 27,822 6,540 1,416 402 1,070 112
2018 Estimated using AADF from previous year on this link 38,005 28,217 6,833 1,646 298 1,088 220
2017 Estimated using AADF from previous year on this link 37,951 28,242 6,696 1,703 302 1,080 229
2016 Estimated using AADF from previous year on this link 38,045 28,251 6,753 1,761 309 1,042 238
2015 Manual count 38,267 28,846 6,547 1,677 299 971 225
2014 Estimated using AADF from previous year on this link 42,631 35,670 3,540 2,012 799 1,196 212
2013 Manual count 42,511 35,567 3,425 2,143 711 1,154 221
2012 Estimated using AADF from previous year on this link 38,096 28,973 5,251 2,547 275 1,052 272
2011 Manual count 38,509 29,536 5,378 2,351 318 968 276
2010 Manual count 46,131 37,965 4,743 2,235 309 986 202
2009 Estimated using AADF from previous year on this link 42,515 35,523 3,890 2,084 660 807 211
2008 Estimated using AADF from previous year on this link 43,134 35,810 3,993 2,277 608 854 200
2007 Estimated using AADF from previous year on this link 44,176 36,653 4,079 2,370 520 877 197
2006 Estimated using AADF from previous year on this link 44,428 37,212 3,991 2,134 402 894 197
2005 Manual count 43,779 36,541 4,025 2,204 324 822 187
2004 Estimated using AADF from previous year on this link 43,649 34,926 5,374 2,083 91 925 341
2003 Estimated using AADF from previous year on this link 43,383 34,512 5,674 1,930 106 969 298
2002 Manual count 43,624 35,216 5,154 2,058 73 937 259
2001 Estimated using AADF from previous year on this link 46,900 38,817 5,570 1,298 193 993 222
2000 Estimated using AADF from previous year on this link 46,757 38,778 5,554 1,299 175 918 208

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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 37112 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 37112 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. 216

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