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Road traffic statistics

18628

Details

AADF latest year 2024
Region South East
Local authority Oxfordshire
Road name M40
Road type Major
Start junction road 10
End junction road 9
Link length 9.00km (5.59 miles)
Easting & Northing 454870,221080
Latitude & longitude 51.88559,-1.20417

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 108,452 77,110 18,444 12,341 0 286 270
2023 Estimated using AADF from previous year on this link 109,109 76,413 17,638 14,524 0 230 304
2022 Manual count 106,744 74,348 17,079 14,789 0 237 291
2021 Automatic counter 95,991 61,982 17,471 16,389 0 120 30
2020 Manual count 74,436 47,863 13,251 13,195 0 102 26
2019 Automatic counter 120,806 88,119 15,049 16,927 0 409 302
2018 Automatic counter 113,153 82,171 14,279 16,013 0 405 285
2017 Automatic counter 114,747 84,009 14,029 16,010 0 412 288
2016 Estimated using AADF from previous year on this link 117,449 87,285 13,426 15,972 0 461 306
2015 Manual count 115,572 86,578 12,642 15,584 0 455 312
2014 Manual count 110,286 84,129 11,074 14,238 0 429 416
2013 Manual count 108,323 81,608 13,219 12,871 0 217 408
2012 Manual count 111,788 86,645 11,598 12,857 0 323 365
2011 Manual count 98,779 75,544 9,910 12,859 0 151 315
2010 Manual count 111,540 86,531 11,251 13,099 0 358 301
2009 Manual count 108,899 84,676 11,159 12,436 0 331 297
2008 Manual count 114,786 88,309 10,906 14,929 0 296 346
2007 Manual count 111,992 84,478 11,187 15,488 0 388 451
2006 Manual count 105,490 81,290 10,000 13,322 0 355 523
2005 Manual count 107,797 84,386 9,381 13,141 0 424 465
2004 Manual count 110,869 85,077 11,001 14,037 0 316 438
2003 Manual count 102,288 77,808 9,619 14,079 0 387 395
2002 Manual count 110,711 86,538 9,575 13,909 0 339 350
2001 Manual count 102,970 77,424 10,587 14,241 0 256 462
2000 Manual count 101,894 78,786 9,281 13,129 0 235 463

Download data

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 18628 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 18628 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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