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Road traffic statistics

990040

Details

AADF latest year 2009
Region East of England
Local authority Hertfordshire
Road name U
Road type Minor
Start junction road -
End junction road -
Link length -
Easting & Northing 508200,192500
Latitude & longitude 51.62093,-0.43845

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 1,139 996 113 25 6 5 0
2008 Manual count 1,193 1,071 105 15 2 2 0
2007 Manual count 1,107 992 92 16 1 2 5
2006 Manual count 1,200 1,043 121 29 3 5 2
2005 Manual count 1,126 937 160 25 2 4 0
2004 Manual count 1,164 1,017 102 38 5 4 3
2003 Manual count 1,215 1,102 86 20 4 2 5
2002 Manual count 1,222 1,101 95 24 2 1 1
2001 Manual count 1,129 1,018 92 15 1 1 3
2000 Manual count 1,100 1,019 70 8 2 0 3

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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 990040 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 990040 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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