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Road traffic statistics

16039

Details

AADF latest year 2024
Region South East
Local authority Buckinghamshire
Road name M40
Road type Major
Start junction road 2
End junction road 1A
Link length 8.00km (4.97 miles)
Easting & Northing 500188,186122
Latitude & longitude 51.56509,-0.55596

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 Estimated using AADF from previous year on this link 127,857 97,197 20,107 9,704 0 439 409
2023 Manual count 127,325 97,363 19,526 9,583 0 443 410
2022 Manual count 129,060 97,027 21,449 9,703 0 522 359
2021 Manual count 116,192 83,867 20,696 10,946 0 511 173
2020 Manual count 105,148 76,384 19,342 9,029 0 358 34
2019 Manual count 122,311 94,237 17,404 9,432 0 609 629
2018 Estimated using AADF from previous year on this link 130,091 102,719 16,701 9,331 0 707 633
2017 Manual count 130,314 103,602 16,189 9,182 0 711 631
2016 Estimated using AADF from previous year on this link 133,458 104,281 17,028 10,792 0 710 648
2015 Manual count 131,296 103,437 16,034 10,463 0 700 661
2014 Manual count 125,942 99,663 14,421 10,361 0 720 777
2013 Manual count 117,052 94,449 14,345 6,787 0 723 749
2012 Manual count 114,315 90,184 14,233 8,172 0 948 777
2011 Manual count 110,504 87,263 12,687 9,021 0 927 606
2010 Manual count 108,695 86,663 13,666 6,790 0 773 803
2009 Manual count 104,646 83,430 12,794 6,867 0 1,018 537
2008 Manual count 104,197 82,703 11,589 8,392 0 766 747
2007 Manual count 109,003 84,545 12,893 9,892 0 875 798
2006 Manual count 122,900 96,490 14,157 10,271 0 855 1,127
2005 Manual count 105,576 84,346 11,313 8,354 0 780 783
2004 Manual count 101,648 83,276 9,130 7,775 0 742 725
2003 Manual count 118,790 96,986 10,719 9,468 0 987 630
2002 Manual count 111,467 90,233 10,751 8,666 0 1,013 804
2001 Manual count 119,835 100,009 10,250 7,924 0 907 745
2000 Estimated using AADF from previous year on this link 103,019 84,902 9,608 7,223 0 646 640

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 16039 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 16039 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. 504

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