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Road traffic statistics

73944

Details

AADF latest year 2024
Region South East
Local authority Slough
Road name M4
Road type Major
Start junction road 6
End junction road LA Boundary
Link length 2.00km (1.24 miles)
Easting & Northing 497000,179050
Latitude & longitude 51.50207,-0.60388

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 128,665 100,625 17,681 9,305 0 557 498
2023 Automatic counter 124,196 97,631 16,630 8,908 0 545 483
2022 Dependent on a neighbouring counted link 115,599 90,641 15,360 8,623 0 534 440
2021 Dependent on a neighbouring counted link 89,426 64,696 14,966 9,157 0 262 345
2020 Dependent on a neighbouring counted link 85,036 61,315 14,641 8,733 0 314 34
2019 Dependent on an automatic counter on a neighbouring link 140,070 111,182 17,409 9,914 0 943 622
2018 Dependent on an automatic counter on a neighbouring link 140,742 111,358 17,742 10,017 0 993 632
2017 Dependent on a neighbouring counted link 142,325 113,374 17,354 9,955 0 1,007 635
2016 Dependent on a neighbouring counted link 139,516 110,775 18,530 8,796 0 780 635
2015 Dependent on a neighbouring counted link 138,235 112,145 16,530 8,099 0 779 680
2014 Dependent on a neighbouring counted link 137,696 112,159 15,698 8,451 0 729 659
2013 Dependent on a neighbouring counted link 144,919 117,894 18,102 7,419 0 740 763
2012 Dependent on a neighbouring counted link 139,232 114,329 15,583 7,901 0 777 641
2011 Dependent on a neighbouring counted link 135,362 108,148 17,429 8,373 0 724 688
2010 Dependent on a neighbouring counted link 128,060 102,317 14,190 9,958 0 823 772
2009 Dependent on a neighbouring counted link 140,515 116,030 11,178 11,424 0 936 947
2008 Dependent on a neighbouring counted link 148,796 125,104 12,081 10,173 0 826 612
2007 Dependent on a neighbouring counted link 146,467 118,087 16,088 10,388 0 984 920
2006 Dependent on a neighbouring counted link 145,431 118,678 14,508 10,004 0 1,104 1,137
2005 Dependent on a neighbouring counted link 139,669 113,315 14,367 9,749 0 1,084 1,154
2004 Dependent on a neighbouring counted link 140,211 115,108 13,439 9,266 0 1,128 1,270
2003 Dependent on a neighbouring counted link 141,450 117,650 12,558 9,037 0 1,096 1,109
2002 Dependent on a neighbouring counted link 135,771 113,342 11,321 9,357 0 844 907
2001 Dependent on a neighbouring counted link 138,400 110,453 12,588 11,456 0 2,031 1,872
2000 Dependent on a neighbouring counted link 138,036 111,711 12,365 10,915 0 1,456 1,589

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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 73944 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 73944 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. 0

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