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Road traffic statistics

10505

Details

AADF latest year 2024
Region Wales
Local authority Carmarthenshire
Road name M4
Road type Major
Start junction road 49
End junction road 48
Link length 4.40km (2.73 miles)
Easting & Northing 257493,207123
Latitude & longitude 51.74464,-4.06557

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 49,884 36,161 10,575 2,972 0 103 74
2023 Estimated using AADF from previous year on this link 49,606 36,222 10,269 2,937 0 104 74
2022 Estimated using AADF from previous year on this link 48,345 35,244 9,944 2,981 0 107 71
2021 Manual count 42,925 31,094 8,741 2,934 0 95 61
2020 Estimated using AADF from previous year on this link 32,622 23,398 5,909 3,171 0 86 58
2019 Estimated using AADF from previous year on this link 47,133 36,216 7,120 3,534 0 156 108
2018 Estimated using AADF from previous year on this link 46,562 35,669 7,126 3,499 0 161 108
2017 Manual count 46,590 35,976 6,907 3,438 0 162 107
2016 Estimated using AADF from previous year on this link 46,332 35,281 7,604 3,194 0 95 158
2015 Estimated using AADF from previous year on this link 45,539 34,995 7,161 3,128 0 94 161
2014 Manual count 44,275 34,895 6,138 2,978 0 92 173
2013 Estimated using AADF from previous year on this link 44,187 33,197 7,921 2,828 0 123 118
2012 Manual count 42,969 32,508 7,436 2,797 0 118 110
2011 Estimated using AADF from previous year on this link 38,444 29,328 5,860 2,934 0 108 214
2010 Manual count 38,945 29,957 5,740 2,928 0 116 204
2009 Estimated using AADF from previous year on this link 45,133 35,221 5,770 3,695 0 116 331
2008 Estimated using AADF from previous year on this link 44,506 34,362 5,684 4,042 0 129 289
2007 Manual count 45,439 35,098 5,764 4,221 0 114 242
2006 Estimated using AADF from previous year on this link 38,455 29,367 4,917 3,735 0 155 281
2005 Manual count 37,696 29,279 4,317 3,756 0 116 228
2004 Estimated using AADF from previous year on this link 35,392 29,093 3,514 2,574 0 61 150
2003 Manual count 35,191 28,720 3,567 2,682 0 68 154
2002 Estimated using AADF from previous year on this link 35,264 26,415 5,667 2,910 0 132 140
2001 Manual count 33,922 26,102 4,703 2,816 0 128 173
2000 Manual count 30,897 24,358 3,187 3,061 0 134 157

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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 10505 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 10505 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. 240

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