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Road traffic statistics

99823

Details

AADF latest year 2024
Region Wales
Local authority Swansea
Road name A4138
Road type Major
Start junction road A4138
End junction road A48 merge
Link length 0.70km (0.43 miles)
Easting & Northing 259100,203860
Latitude & longitude 51.71573,-4.04099

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 7,391 6,209 970 85 33 77 50
2023 Manual count 7,301 6,135 953 85 34 78 50
2022 Estimated using AADF from previous year on this link 6,790 5,223 1,381 95 11 52 39
2021 Estimated using AADF from previous year on this link 6,282 4,866 1,240 92 11 47 36
2020 Estimated using AADF from previous year on this link 5,694 4,450 1,083 85 15 45 31
2019 Estimated using AADF from previous year on this link 7,563 6,094 1,265 95 12 61 48
2018 Estimated using AADF from previous year on this link 7,550 6,081 1,269 95 10 56 48
2017 Estimated using AADF from previous year on this link 7,524 6,110 1,212 94 10 58 51
2016 Estimated using AADF from previous year on this link 7,466 6,117 1,145 91 10 59 52
2015 Estimated using AADF from previous year on this link 7,304 6,042 1,061 89 10 59 53
2014 Estimated using AADF from previous year on this link 7,307 6,114 991 88 10 62 52
2013 Estimated using AADF from previous year on this link 7,150 6,030 922 87 13 60 50
2012 Manual count 7,204 6,143 859 88 13 60 55
2011 Estimated using AADF from previous year on this link 7,586 6,340 977 97 12 107 65
2010 Estimated using AADF from previous year on this link 7,499 6,321 923 95 14 98 62
2009 Estimated using AADF from previous year on this link 7,605 6,443 897 94 14 111 60
2008 Manual count 7,671 6,521 880 103 12 107 60
2007 Estimated using AADF from previous year on this link 7,541 6,039 1,137 200 24 103 62
2006 Estimated using AADF from previous year on this link 7,575 6,201 1,031 182 24 103 58
2005 Estimated using AADF from previous year on this link 7,377 6,032 983 179 25 122 61
2004 Estimated using AADF from previous year on this link 7,351 6,038 936 183 24 133 61
2003 Estimated using AADF from previous year on this link 7,341 6,032 929 180 24 129 71
2002 Estimated using AADF from previous year on this link 7,156 5,978 824 181 29 105 68
2001 Estimated using AADF from previous year on this link 7,016 5,907 764 175 27 106 64
2000 Manual count 6,965 5,889 739 177 31 95 65

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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 99823 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 99823 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. 25
Raw counts Vehicle counts recorded at this count point. 48

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