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Road traffic statistics

46039

Details

AADF latest year 2024
Region South East
Local authority Buckinghamshire
Road name M40
Road type Major
Start junction road 3
End junction road 2
Link length 4.70km (2.92 miles)
Easting & Northing 493000,189660
Latitude & longitude 51.59812,-0.65869

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 137,481 101,022 24,866 10,780 0 411 403
2023 Estimated using AADF from previous year on this link 136,827 101,195 24,146 10,668 0 415 403
2022 Estimated using AADF from previous year on this link 133,470 98,461 23,381 10,816 0 427 385
2021 Manual count 118,774 86,867 20,552 10,641 0 379 335
2020 Automatic counter 102,839 75,231 17,134 9,725 0 364 385
2019 Manual count 133,490 104,178 18,445 9,643 0 586 638
2018 Automatic counter 133,485 105,820 16,896 9,585 0 605 579
2017 Manual count 137,583 109,807 16,844 9,712 0 626 594
2016 Manual count 142,961 112,588 17,232 11,872 0 570 700
2015 Manual count 123,067 96,254 16,759 8,496 0 749 810
2014 Manual count 121,531 98,165 14,411 7,676 0 618 660
2013 Manual count 121,675 98,095 14,547 7,441 0 863 728
2012 Manual count 120,390 92,243 19,779 7,092 0 631 643
2011 Manual count 115,252 93,794 11,611 8,621 0 625 601
2010 Manual count 119,378 94,950 14,117 8,763 0 811 737
2009 Manual count 108,767 87,158 13,168 7,193 0 632 616
2008 Manual count 101,289 80,111 11,713 8,201 0 652 612
2007 Manual count 120,333 96,092 12,489 10,150 0 814 788
2006 Manual count 119,880 94,900 12,942 10,117 0 866 1,055
2005 Estimated using AADF from previous year on this link 119,552 96,876 11,432 9,269 0 1,009 966
2004 Manual count 119,312 96,876 11,046 9,461 0 999 930
2003 Manual count 112,179 90,327 11,137 9,193 0 859 663
2002 Manual count 113,690 93,764 9,440 9,135 0 690 661
2001 Manual count 123,240 101,800 11,360 7,817 0 1,391 872
2000 Manual count 114,183 93,810 9,948 8,681 0 811 933

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 46039 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 46039 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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