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Road traffic statistics

73637

Details

AADF latest year 2024
Region South East
Local authority Slough
Road name M4
Road type Major
Start junction road 4B / M25
End junction road LA Boundary
Link length 0.30km (0.19 miles)
Easting & Northing 504750,178383
Latitude & longitude 51.4947,-0.49246

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 68,357 50,198 14,304 3,322 0 285 248
2023 Automatic counter 68,400 50,617 13,948 3,295 0 290 250
2022 Estimated using AADF from previous year on this link 68,168 50,373 13,852 3,394 0 305 244
2021 Estimated using AADF from previous year on this link 60,440 44,441 12,176 3,339 0 271 212
2020 Estimated using AADF from previous year on this link 52,773 38,875 10,417 3,003 0 266 212
2019 Estimated using AADF from previous year on this link 76,925 60,172 12,551 3,329 0 479 395
2018 Automatic counter 76,014 59,264 12,561 3,301 0 494 394
2017 Automatic counter 77,513 60,906 12,400 3,301 0 507 400
2016 Estimated using AADF from previous year on this link 146,841 117,022 21,965 6,019 0 1,049 786
2015 Dependent on a neighbouring counted link 144,394 116,075 20,683 5,798 0 1,036 802
2014 Dependent on a neighbouring counted link 159,549 130,343 21,041 6,276 0 1,003 886
2013 Dependent on a neighbouring counted link 163,456 137,404 17,713 6,047 0 1,095 1,197
2012 Dependent on a neighbouring counted link 171,881 148,108 12,843 9,067 0 859 1,004
2011 Dependent on a neighbouring counted link 151,367 130,358 14,171 4,955 0 763 1,120
2010 Dependent on a neighbouring counted link 148,143 124,261 14,993 7,165 0 889 835
2009 Dependent on a neighbouring counted link 170,726 146,702 15,072 7,257 0 862 833
2008 Dependent on a neighbouring counted link 152,744 127,556 14,703 7,665 0 1,493 1,327
2007 Dependent on a neighbouring counted link 156,693 123,100 21,435 9,195 0 1,458 1,505
2006 Dependent on a neighbouring counted link 143,536 119,807 13,752 7,329 0 1,210 1,438
2005 Dependent on a neighbouring counted link 140,483 116,089 14,032 7,431 0 1,437 1,494
2004 Dependent on a neighbouring counted link 139,418 115,880 13,725 7,236 0 1,313 1,264
2003 Dependent on a neighbouring counted link 151,843 128,666 13,256 7,060 0 1,551 1,310
2002 Dependent on a neighbouring counted link 146,092 123,553 12,636 7,226 0 1,461 1,216
2001 Dependent on a neighbouring counted link 147,297 122,551 14,381 6,894 0 1,958 1,513
2000 Dependent on a neighbouring counted link 153,199 127,310 14,230 8,356 0 1,936 1,367

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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 73637 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 73637 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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