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Road traffic statistics

990331

Details

AADF latest year 2009
Region London
Local authority Hillingdon
Road name C
Road type Minor
Start junction road -
End junction road -
Link length -
Easting & Northing 510600,186310
Latitude & longitude 51.56483,-0.40574

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 13,818 12,381 1,071 174 21 74 118
2008 Manual count 13,503 11,564 1,260 334 58 128 217
2007 Manual count 12,629 11,076 966 355 30 80 152
2006 Manual count 14,523 12,406 1,468 279 138 171 199
2005 Manual count 15,187 12,600 1,882 310 139 143 252
2004 Manual count 15,448 13,276 1,493 309 59 185 185
2003 Manual count 15,766 13,825 1,197 465 72 138 141
2002 Manual count 15,202 13,158 1,335 359 85 195 155
2001 Manual count 14,218 12,307 1,294 268 70 163 186
2000 Manual count 14,439 12,505 1,091 492 52 194 157

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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 990331 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 990331 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. 240

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