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Road traffic statistics

17099

Details

AADF latest year 2024
Region London
Local authority Hillingdon
Road name A437
Road type Major
Start junction road A4(T)
End junction road A312
Link length 2.60km (1.62 miles)
Easting & Northing 508760,178000
Latitude & longitude 51.4905,-0.43484

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 14,793 12,135 1,428 81 186 423 726
2023 Estimated using AADF from previous year on this link 15,906 13,361 1,657 160 149 171 557
2022 Estimated using AADF from previous year on this link 15,900 13,389 1,628 162 146 168 553
2021 Estimated using AADF from previous year on this link 15,379 13,035 1,500 153 142 146 546
2020 Estimated using AADF from previous year on this link 14,302 12,082 1,407 144 159 128 541
2019 Estimated using AADF from previous year on this link 18,534 15,938 1,614 165 129 168 649
2018 Estimated using AADF from previous year on this link 18,490 15,897 1,614 166 137 159 653
2017 Estimated using AADF from previous year on this link 18,498 15,911 1,582 168 139 158 679
2016 Manual count 18,541 15,916 1,595 170 142 152 707
2015 Estimated using AADF from previous year on this link 14,750 12,368 1,315 282 54 80 705
2014 Estimated using AADF from previous year on this link 14,775 12,410 1,263 282 47 85 735
2013 Estimated using AADF from previous year on this link 14,748 12,374 1,222 303 42 82 766
2012 Estimated using AADF from previous year on this link 14,669 12,267 1,192 294 51 84 831
2011 Estimated using AADF from previous year on this link 14,923 12,506 1,221 276 59 77 843
2010 Estimated using AADF from previous year on this link 14,937 12,544 1,227 273 59 77 816
2009 Estimated using AADF from previous year on this link 15,252 12,892 1,241 269 61 82 768
2008 Estimated using AADF from previous year on this link 15,371 12,996 1,274 287 57 86 728
2007 Manual count 15,698 13,301 1,302 291 49 88 716
2006 Estimated using AADF from previous year on this link 17,540 15,251 1,142 383 140 123 641
2005 Manual count 17,238 14,976 1,151 387 113 113 611
2004 Estimated using AADF from previous year on this link 15,552 12,852 1,674 418 44 90 518
2003 Manual count 15,396 12,699 1,768 381 51 94 454
2002 Estimated using AADF from previous year on this link 16,916 14,198 1,810 231 91 149 528
2001 Manual count 16,861 14,198 1,775 248 87 156 484
2000 Estimated using AADF from previous year on this link 17,623 15,405 1,468 164 170 165 421

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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 17099 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 17099 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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