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Road traffic statistics

18220

Details

AADF latest year 2024
Region South East
Local authority Oxfordshire
Road name M40
Road type Major
Start junction road 8
End junction road A40
Link length 2.50km (1.55 miles)
Easting & Northing 462000,204847
Latitude & longitude 51.73891,-1.10349

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 Automatic counter 26,516 20,166 4,030 1,948 0 105 267
2023 Automatic counter 25,802 19,730 3,824 1,882 0 103 262
2022 Automatic counter 25,871 19,745 3,809 1,951 0 109 257
2021 Automatic counter 22,888 17,328 3,334 1,907 0 97 222
2020 Automatic counter 21,231 16,068 3,011 1,814 0 100 237
2019 Automatic counter 27,912 22,290 3,260 1,807 0 162 393
2018 Automatic counter 26,755 21,301 3,166 1,746 0 163 380
2017 Estimated using AADF from previous year on this link 26,230 21,013 3,006 1,680 0 160 370
2016 Estimated using AADF from previous year on this link 25,965 21,036 2,773 1,605 0 173 379
2015 Estimated using AADF from previous year on this link 25,596 20,865 2,611 1,562 0 171 387
2014 Manual count 25,454 20,909 2,441 1,544 0 155 405
2013 Estimated using AADF from previous year on this link 21,203 16,190 3,090 877 0 111 934
2012 Estimated using AADF from previous year on this link 20,953 16,200 2,852 858 0 112 931
2011 Estimated using AADF from previous year on this link 21,441 16,666 2,876 892 0 130 877
2010 Estimated using AADF from previous year on this link 21,471 16,800 2,822 937 0 136 776
2009 Estimated using AADF from previous year on this link 22,049 17,464 2,800 945 0 145 695
2008 Estimated using AADF from previous year on this link 22,246 17,712 2,753 1,018 0 143 620
2007 Estimated using AADF from previous year on this link 22,271 17,963 2,646 1,049 0 146 467
2006 Manual count 21,749 17,698 2,400 1,070 0 132 449
2005 Estimated using AADF from previous year on this link 22,876 18,378 2,881 1,264 0 120 233
2004 Estimated using AADF from previous year on this link 22,320 17,966 2,632 1,314 0 140 268
2003 Estimated using AADF from previous year on this link 21,888 17,665 2,439 1,248 0 127 409
2002 Manual count 21,256 17,167 2,325 1,257 0 129 378
2001 Estimated using AADF from previous year on this link 23,720 19,221 2,459 1,268 0 170 602
2000 Estimated using AADF from previous year on this link 22,745 18,323 2,416 1,269 0 160 577

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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 18220 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 18220 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. 72

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