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Road traffic statistics

990328

Details

AADF latest year 2009
Region London
Local authority Hillingdon
Road name U
Road type Minor
Start junction road -
End junction road -
Link length -
Easting & Northing 506150,180500
Latitude & longitude 51.51346,-0.47167

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 Manual count 2,188 1,895 191 75 73 15 12
2008 Manual count 2,359 2,000 246 57 70 55 1
2007 Estimated using AADF from previous year on this link 3,268 2,795 361 78 137 34 0
2006 Manual count 3,480 2,970 373 98 135 39 0
2005 Manual count 4,032 3,652 293 67 143 12 8
2004 Manual count 3,950 3,604 251 50 77 23 22
2003 Manual count 4,047 3,673 262 85 103 21 6
2002 Manual count 3,727 3,405 258 34 73 29 1
2001 Manual count 3,570 3,138 345 34 124 36 17
2000 Manual count 2,994 2,656 261 59 74 16 2

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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 990328 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 990328 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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