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Road traffic statistics

73638

Details

AADF latest year 2024
Region South East
Local authority Slough
Road name M25
Road type Major
Start junction road 15
End junction road LA Boundary
Link length 0.20km (0.12 miles)
Easting & Northing 504600,178273
Latitude & longitude 51.49374,-0.49466

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 129,426 94,006 23,516 11,001 0 621 281
2023 Automatic counter 130,025 95,073 23,055 10,980 0 633 285
2022 Automatic counter 133,987 97,714 23,581 11,716 0 688 287
2021 Automatic counter 120,188 86,826 20,878 11,617 0 616 251
2020 Automatic counter 110,688 79,893 18,788 11,107 0 635 265
2019 Automatic counter 146,054 112,831 20,654 11,077 0 1,043 449
2018 Estimated from nearby links 131,695 101,372 18,856 10,075 0 983 409
2017 Automatic counter 131,867 99,912 20,725 10,269 0 568 394
2016 Estimated using AADF from previous year on this link 214,462 165,024 31,540 16,224 0 1,011 665
2015 Dependent on a neighbouring counted link 210,848 163,687 29,699 15,786 0 997 678
2014 Dependent on a neighbouring counted link 262,842 207,133 38,449 15,356 0 1,040 864
2013 Dependent on a neighbouring counted link 227,585 186,314 22,484 15,070 0 2,461 1,256
2012 Dependent on a neighbouring counted link 207,485 168,343 21,637 15,585 0 1,212 708
2011 Dependent on a neighbouring counted link 172,586 136,784 19,780 14,901 0 694 427
2010 Dependent on a neighbouring counted link 185,633 140,012 20,555 23,376 0 1,157 533
2009 Dependent on a neighbouring counted link 213,127 177,853 18,345 15,367 0 926 636
2008 Dependent on a neighbouring counted link 209,977 170,354 20,933 16,108 0 1,533 1,049
2007 Dependent on a neighbouring counted link 183,235 148,247 18,270 15,075 0 979 664
2006 Dependent on a neighbouring counted link 156,545 123,459 16,145 15,110 0 944 887
2005 Estimated using AADF from previous year on this link 164,527 128,220 18,640 16,213 0 987 467
2004 Estimated using AADF from previous year on this link 164,417 129,778 16,793 16,429 0 997 420
2003 Dependent on a neighbouring counted link 164,593 130,693 16,272 15,730 0 1,133 765
2002 Dependent on a neighbouring counted link 178,329 141,626 17,810 16,928 0 1,132 833
2001 Dependent on a neighbouring counted link 169,617 134,473 17,421 15,921 0 1,205 597
2000 Dependent on a neighbouring counted link 180,058 143,362 17,768 16,000 0 1,680 1,248

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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 73638 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 73638 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. 49
Raw counts Vehicle counts recorded at this count point. 0

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