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Road traffic statistics

40501

Details

AADF latest year 2024
Region Wales
Local authority Newport
Road name M4
Road type Major
Start junction road LA Boundary
End junction road 29
Link length 3.30km (2.05 miles)
Easting & Northing 324000,183800
Latitude & longitude 51.54795,-3.09744

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 73,438 49,697 16,654 6,806 0 200 82
2023 Manual count 72,969 49,782 16,172 6,732 0 202 82
2022 Estimated using AADF from previous year on this link 70,589 48,698 14,152 7,461 0 196 83
2021 Estimated using AADF from previous year on this link 62,998 42,963 12,440 7,349 0 174 72
2020 Estimated using AADF from previous year on this link 55,175 37,582 10,642 6,707 0 171 72
2019 Manual count 78,797 58,171 12,823 7,362 0 307 135
2018 Estimated using AADF from previous year on this link 74,906 55,103 11,554 7,777 0 293 178
2017 Manual count 74,920 55,577 11,200 7,670 0 295 177
2016 Estimated using AADF from previous year on this link 73,456 54,296 11,256 7,249 0 532 123
2015 Estimated using AADF from previous year on this link 72,237 53,856 10,599 7,131 0 525 125
2014 Manual count 70,812 53,713 9,526 6,900 0 538 135
2013 Estimated using AADF from previous year on this link 61,259 45,767 8,397 6,615 0 292 188
2012 Manual count 60,119 45,315 7,778 6,581 0 266 179
2011 Estimated using AADF from previous year on this link 59,643 44,143 8,256 6,753 0 272 219
2010 Manual count 58,683 43,405 7,900 6,908 0 278 192
2009 Estimated using AADF from previous year on this link 57,932 42,464 7,890 7,078 0 274 226
2008 Manual count 58,848 42,850 7,751 7,753 0 284 210
2007 Manual count 60,006 43,650 8,390 7,662 0 184 120
2006 Manual count 64,779 46,841 9,622 7,922 0 189 205
2005 Manual count 59,359 43,712 7,902 7,346 0 229 170
2004 Manual count 64,922 48,272 8,268 7,799 0 286 297
2003 Manual count 60,206 44,386 7,458 7,933 0 208 221
2002 Manual count 59,821 44,278 7,570 7,651 0 136 186
2001 Manual count 56,150 41,826 6,387 7,475 0 205 257
2000 Manual count 54,250 42,619 4,601 6,543 0 230 257

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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 40501 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 40501 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. 360

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