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Road traffic statistics

48810

Details

AADF latest year 2024
Region London
Local authority Hillingdon
Road name A312
Road type Major
Start junction road LA Boundary
End junction road A4020 Uxbridge rd
Link length 1.80km (1.12 miles)
Easting & Northing 510780,180000
Latitude & longitude 51.50808,-0.40513

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 63,738 50,901 9,898 1,717 215 1,076 146
2023 Estimated using AADF from previous year on this link 61,037 48,624 8,887 2,485 146 873 168
2022 Manual count 61,015 48,726 8,732 2,530 142 860 167
2021 Manual count 60,337 46,820 9,891 2,812 197 641 173
2020 Estimated using AADF from previous year on this link 49,312 38,957 7,243 2,351 183 509 252
2019 Manual count 63,377 51,391 8,308 2,708 148 669 302
2018 Estimated using AADF from previous year on this link 56,521 45,408 8,602 1,661 225 638 212
2017 Manual count 56,458 45,448 8,429 1,728 228 633 220
2016 Manual count 61,235 49,121 9,041 1,957 157 778 337
2015 Manual count 61,323 50,212 7,994 2,123 179 687 307
2014 Manual count 60,557 49,033 8,330 2,209 94 595 390
2013 Manual count 58,044 48,542 6,844 1,827 0 347 483
2012 Estimated using AADF from previous year on this link 54,378 44,778 6,514 2,170 13 722 193
2011 Manual count 55,192 45,649 6,671 2,012 15 664 196
2010 Manual count 52,793 46,613 2,807 2,683 14 545 145
2009 Estimated using AADF from previous year on this link 57,743 46,370 7,755 2,472 7 568 578
2008 Manual count 58,533 46,744 7,962 2,678 7 601 548
2007 Manual count 59,184 47,070 8,612 2,430 8 617 455
2006 Manual count 60,814 48,555 8,753 2,499 143 701 306
2005 Manual count 64,186 55,077 5,842 2,614 5 332 321
2004 Manual count 60,434 50,577 5,763 3,147 89 701 246
2003 Manual count 59,193 47,114 7,168 4,110 33 573 228
2002 Manual count 53,188 44,046 5,715 2,501 26 733 193
2001 Manual count 65,464 54,141 7,462 2,979 105 589 293
2000 Manual count 55,343 42,499 8,581 3,102 6 807 354

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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 48810 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 48810 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. 480

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