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Road traffic statistics

40500

Details

AADF latest year 2024
Region Wales
Local authority Newport
Road name M4
Road type Major
Start junction road 26
End junction road 25A
Link length 1.40km (0.87 miles)
Easting & Northing 330836,189830
Latitude & longitude 51.60305,-3.00005

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 Manual count 81,578 60,176 13,041 8,006 0 243 112
2023 Estimated using AADF from previous year on this link 82,165 57,845 15,801 8,146 0 251 122
2022 Manual count 80,282 56,282 15,300 8,325 0 259 117
2021 Estimated using AADF from previous year on this link 70,143 48,173 13,264 8,484 0 157 65
2020 Manual count 61,468 42,139 11,348 7,763 0 154 65
2019 Estimated using AADF from previous year on this link 85,379 62,772 13,433 8,282 0 419 473
2018 Estimated using AADF from previous year on this link 84,436 61,824 13,443 8,264 0 432 473
2017 Estimated using AADF from previous year on this link 84,439 62,356 13,030 8,147 0 435 471
2016 Estimated using AADF from previous year on this link 83,236 62,423 12,018 7,844 0 469 482
2015 Estimated using AADF from previous year on this link 81,972 61,918 11,317 7,782 0 463 492
2014 Manual count 80,457 61,754 10,170 7,527 0 475 531
2013 Manual count 69,397 53,111 7,751 7,930 0 433 172
2012 Manual count 74,403 56,629 9,203 7,844 0 426 302
2011 Manual count 65,452 48,727 8,426 7,570 0 497 232
2010 Manual count 60,186 44,044 7,404 8,355 0 223 160
2009 Manual count 65,885 49,643 7,679 7,928 0 406 229
2008 Estimated using AADF from previous year on this link 76,895 57,014 10,937 7,841 0 371 732
2007 Estimated using AADF from previous year on this link 78,144 58,357 10,681 8,190 0 352 564
2006 Manual count 77,193 57,951 10,086 8,316 0 341 499
2005 Manual count 72,540 55,725 8,525 7,737 0 296 257
2004 Estimated using AADF from previous year on this link 75,180 57,655 8,410 8,587 0 387 141
2003 Estimated using AADF from previous year on this link 72,650 56,084 7,633 8,263 0 435 235
2002 Manual count 74,213 57,463 7,410 8,726 0 385 229
2001 Estimated using AADF from previous year on this link 74,644 55,851 8,489 9,693 0 277 334
2000 Estimated using AADF from previous year on this link 72,468 54,224 8,031 9,611 0 275 327

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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 40500 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 40500 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. 288

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