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Road traffic statistics

8280

Details

AADF latest year 2024
Region London
Local authority Hillingdon
Road name M4
Road type Major
Start junction road 4
End junction road A408
Link length 0.20km (0.12 miles)
Easting & Northing 507489,178674
Latitude & longitude 51.4968,-0.45294

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 54,682 40,402 10,593 3,120 0 181 387
2023 Estimated using AADF from previous year on this link 54,401 40,471 10,286 3,073 0 183 387
2022 Estimated using AADF from previous year on this link 52,981 39,378 9,960 3,085 0 188 370
2021 Manual count 47,017 34,741 8,755 3,032 0 167 321
2020 Estimated using AADF from previous year on this link 40,339 30,683 6,929 2,224 0 210 292
2019 Estimated using AADF from previous year on this link 59,242 47,493 8,349 2,478 0 379 543
2018 Estimated using AADF from previous year on this link 58,524 46,776 8,355 2,459 0 392 542
2017 Manual count 58,623 47,178 8,099 2,412 0 394 540
2016 Estimated using AADF from previous year on this link 55,077 43,219 8,229 2,789 0 318 521
2015 Estimated using AADF from previous year on this link 54,111 42,869 7,749 2,646 0 314 532
2014 Manual count 52,258 41,838 7,093 2,523 0 303 501
2013 Estimated using AADF from previous year on this link 54,045 46,473 4,400 2,460 0 206 505
2012 Estimated using AADF from previous year on this link 53,668 46,427 4,117 2,403 0 209 512
2011 Estimated using AADF from previous year on this link 53,955 47,100 3,815 2,345 0 219 476
2010 Manual count 53,909 47,195 3,711 2,342 0 209 452
2009 Estimated using AADF from previous year on this link 41,083 31,676 5,922 2,114 0 389 982
2008 Estimated using AADF from previous year on this link 40,948 31,644 5,760 2,209 0 389 946
2007 Estimated using AADF from previous year on this link 40,672 31,900 5,383 2,197 0 405 787
2006 Manual count 43,052 34,524 5,147 2,242 0 384 755
2005 Estimated using AADF from previous year on this link 51,664 41,455 6,625 2,467 0 623 494
2004 Estimated using AADF from previous year on this link 51,435 41,959 5,968 2,435 0 629 444
2003 Estimated using AADF from previous year on this link 51,801 42,255 5,783 2,239 0 715 809
2002 Manual count 50,783 41,589 5,534 2,310 0 664 686
2001 Estimated using AADF from previous year on this link 48,968 39,633 5,985 2,251 0 660 439
2000 Estimated using AADF from previous year on this link 47,516 38,479 5,827 2,139 0 645 426

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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 8280 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 8280 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. 144

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