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Road traffic statistics

990155

Details

AADF latest year 2009
Region Wales
Local authority Cardiff
Road name B4487
Road type Minor
Start junction road -
End junction road -
Link length -
Easting & Northing 321030,178658
Latitude & longitude 51.50132,-3.13911

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
2009 Estimated using AADF from previous year on this link 29,277 26,226 2,270 236 128 146 399
2008 Manual count 29,782 26,653 2,331 252 132 134 412
2007 Manual count 31,754 28,531 2,165 256 148 228 574
2006 Manual count 29,811 26,284 2,531 437 151 169 390
2005 Manual count 29,140 25,588 2,621 295 95 146 490
2004 Manual count 32,077 28,572 2,505 239 151 139 622
2003 Manual count 34,317 30,466 1,549 1,851 140 95 356
2002 Manual count 21,529 18,887 1,916 233 66 128 365
2001 Manual count 29,155 26,043 2,098 282 114 241 491
2000 Manual count 22,433 19,461 2,189 231 98 126 426

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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 990155 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 990155 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. 10
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. 20
Raw counts Vehicle counts recorded at this count point. 216

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