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Road traffic statistics

17178

Details

AADF latest year 2006
Region East of England
Local authority Hertfordshire
Road name A505
Road type Major
Start junction road A6141
End junction road A6141
Link length 2.50km (1.55 miles)
Easting & Northing 523977,233523
Latitude & longitude 51.98635,-0.196

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
2006 Manual count 17,259 14,424 1,991 447 40 269 128
2005 Estimated using AADF from previous year on this link 15,315 12,615 1,945 525 75 148 82
2004 Manual count 15,820 13,223 1,825 505 89 179 88
2003 Estimated using AADF from previous year on this link 14,675 12,381 1,572 456 44 171 95
2002 Manual count 14,991 12,857 1,448 469 49 120 97
2001 Estimated using AADF from previous year on this link 15,700 12,654 2,078 639 79 164 165
2000 Manual count 16,117 13,059 2,064 680 82 156 158

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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 17178 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 17178 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. 7
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. 14
Raw counts Vehicle counts recorded at this count point. 96

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