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Road traffic statistics

521

Details

AADF latest year 2020
Region Wales
Local authority The Vale of Glamorgan
Road name A48
Road type Major
Start junction road LA boundary
End junction road A4222 Gibbet's Hill
Link length 7.70km (4.78 miles)
Easting & Northing 295051,176402
Latitude & longitude 51.47681,-3.51259

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
2020 Estimated using AADF from previous year on this link 8,896 7,198 1,220 365 22 55 57
2019 Manual count 11,856 9,857 1,426 410 17 74 88
2018 Estimated using AADF from previous year on this link 13,921 11,391 1,900 349 35 190 91
2017 Estimated using AADF from previous year on this link 13,892 11,446 1,814 341 36 195 95
2016 Estimated using AADF from previous year on this link 13,805 11,460 1,715 332 36 200 98
2015 Manual count 13,523 11,319 1,588 317 36 200 99
2014 Estimated using AADF from previous year on this link 11,612 9,456 1,811 220 4 51 74
2013 Estimated using AADF from previous year on this link 11,349 9,325 1,685 217 5 49 72
2012 Estimated using AADF from previous year on this link 11,413 9,501 1,570 214 5 49 79
2011 Estimated using AADF from previous year on this link 11,615 9,775 1,496 211 5 53 80
2010 Manual count 11,491 9,746 1,414 207 5 48 76
2009 Estimated using AADF from previous year on this link 12,710 10,391 1,536 384 16 308 91
2008 Manual count 12,831 10,517 1,507 421 14 295 91
2007 Manual count 15,385 14,157 740 310 8 100 78
2006 Manual count 11,614 9,759 913 743 3 114 85
2005 Manual count 12,828 11,063 1,129 400 12 156 80
2004 Manual count 14,230 12,261 1,289 374 7 190 116
2003 Manual count 14,951 12,721 1,420 457 14 278 75
2002 Manual count 13,952 11,965 1,253 404 15 215 115
2001 Manual count 12,434 10,428 1,294 439 19 194 79
2000 Estimated using AADF from previous year on this link 13,962 12,129 1,282 263 14 190 98

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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 521 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 521 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. 21
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. 42
Raw counts Vehicle counts recorded at this count point. 264

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