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Road traffic statistics

46121

Details

AADF latest year 2024
Region London
Local authority Hounslow
Road name A4
Road type Major
Start junction road A316 roundabout
End junction road LA Boundary
Link length 0.70km (0.43 miles)
Easting & Northing 521800,178170
Latitude & longitude 51.48937,-0.24705

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 98,100 76,516 13,955 3,511 715 2,746 1,372
2023 Automatic counter 98,366 76,968 13,876 3,537 639 2,627 1,358
2022 Manual count 86,618 68,004 11,988 3,154 624 2,285 1,187
2021 Automatic counter 85,820 64,579 15,603 2,985 33 2,442 210
2020 Manual count 73,142 54,963 13,449 2,573 37 1,965 191
2019 Automatic counter 109,734 84,502 17,309 2,708 297 3,958 1,257
2018 Automatic counter 112,444 86,719 17,789 2,772 328 3,862 1,302
2017 Automatic counter 109,950 84,950 17,056 2,868 325 3,752 1,324
2016 Estimated using AADF from previous year on this link 95,358 73,556 14,861 2,610 289 3,136 1,195
2015 Manual count 95,971 75,107 14,408 2,403 280 2,922 1,130
2014 Manual count 91,674 70,874 14,405 2,132 284 2,860 1,402
2013 Manual count 106,236 82,172 16,225 2,853 26 3,538 1,449
2012 Manual count 71,589 57,601 7,645 2,451 72 2,747 1,145
2011 Manual count 98,384 80,326 11,425 2,816 0 2,606 1,211
2010 Estimated using AADF from previous year on this link 91,926 74,924 9,412 2,862 20 2,769 1,959
2009 Manual count 94,152 77,003 9,517 2,840 20 2,949 1,843
2008 Estimated using AADF from previous year on this link 99,992 77,752 14,237 2,972 310 3,746 1,285
2007 Estimated using AADF from previous year on this link 102,296 79,583 14,543 3,060 265 3,846 1,264
2006 Manual count 102,941 80,795 14,229 2,738 205 3,920 1,259
2005 Estimated using AADF from previous year on this link 98,129 82,785 8,581 2,854 192 2,285 1,624
2004 Estimated using AADF from previous year on this link 99,082 83,706 8,404 2,966 187 2,485 1,521
2003 Estimated using AADF from previous year on this link 98,204 82,714 8,874 2,683 218 2,602 1,331
2002 Manual count 99,020 84,402 8,060 2,886 150 2,517 1,155
2001 Estimated using AADF from previous year on this link 104,013 83,425 9,714 3,738 232 5,382 1,754
2000 Manual count 103,580 83,341 9,685 3,936 211 4,978 1,640

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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 46121 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 46121 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. 264

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