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Road traffic statistics

26914

Details

AADF latest year 2024
Region London
Local authority Hounslow
Road name A312
Road type Major
Start junction road A4
End junction road M4 J3
Link length 1.90km (1.18 miles)
Easting & Northing 510642,177347
Latitude & longitude 51.48426,-0.40795

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 54,586 42,348 9,073 2,354 165 640 171
2023 Manual count 51,109 39,880 7,625 2,961 131 497 146
2022 Estimated using AADF from previous year on this link 51,121 37,117 9,807 3,486 118 523 188
2021 Manual count 49,137 36,136 9,033 3,329 115 454 186
2020 Estimated using AADF from previous year on this link 37,466 27,662 6,962 2,339 205 268 234
2019 Manual count 47,808 36,492 7,986 2,698 165 352 280
2018 Estimated using AADF from previous year on this link 45,212 35,199 7,134 2,152 109 486 242
2017 Manual count 45,190 35,230 6,991 2,235 110 482 252
2016 Manual count 49,927 38,139 8,377 2,730 65 510 171
2015 Manual count 51,268 40,423 7,531 2,413 145 593 308
2014 Manual count 53,028 41,732 7,847 2,713 91 510 227
2013 Manual count 52,665 42,523 6,095 3,119 1 548 381
2012 Manual count 57,561 48,050 7,020 1,866 0 350 275
2011 Manual count 46,208 38,711 4,342 2,613 6 288 254
2010 Manual count 56,332 48,121 5,043 2,468 25 548 152
2009 Manual count 69,060 58,128 7,332 2,751 5 696 153
2008 Manual count 60,383 49,386 6,915 3,107 0 470 505
2007 Estimated using AADF from previous year on this link 53,337 42,288 7,427 2,749 30 607 266
2006 Manual count 53,567 42,932 7,268 2,484 23 618 265
2005 Estimated using AADF from previous year on this link 54,969 45,917 5,601 2,672 44 524 255
2004 Manual count 55,480 46,428 5,486 2,755 43 571 240
2003 Estimated using AADF from previous year on this link 54,314 43,318 6,952 3,361 20 430 253
2002 Manual count 54,704 44,202 6,315 3,551 14 416 220
2001 Manual count 55,496 46,047 5,572 2,984 45 549 344
2000 Manual count 67,056 55,826 8,268 2,210 12 500 252

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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 26914 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 26914 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. 456

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