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Road traffic statistics

99681

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A41
Road type Major
Start junction road A416
End junction road A4251
Link length 7.20km (4.47 miles)
Easting & Northing 497000,207680
Latitude & longitude 51.75942,-0.59596

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
2024 Manual count 35,167 26,969 6,410 1,556 0 148 84
2023 Estimated using AADF from previous year on this link 33,396 25,655 6,055 1,381 0 217 88
2022 Manual count 32,716 25,036 5,937 1,421 0 233 89
2021 Estimated using AADF from previous year on this link 30,321 22,546 5,825 1,736 1 156 59
2020 Manual count 27,518 20,617 5,086 1,615 1 151 50
2019 Estimated using AADF from previous year on this link 37,321 29,731 5,751 1,515 0 243 80
2018 Manual count 37,256 29,666 5,771 1,513 0 226 81
2017 Estimated using AADF from previous year on this link 36,657 29,374 5,475 1,475 0 229 104
2016 Estimated using AADF from previous year on this link 36,362 29,410 5,174 1,436 0 236 106
2015 Manual count 35,567 29,049 4,791 1,383 0 235 108
2014 Estimated using AADF from previous year on this link 30,889 25,031 4,299 1,222 0 216 122
2013 Manual count 30,042 24,467 4,005 1,252 0 209 108
2012 Estimated using AADF from previous year on this link 30,160 24,529 3,973 1,290 0 255 113
2011 Manual count 30,171 24,707 3,815 1,276 0 262 111
2010 Manual count 37,612 31,984 3,987 1,281 0 260 100
2009 Manual count 35,592 29,807 4,164 1,235 0 305 81
2008 Manual count 33,126 26,912 4,539 1,236 0 338 101
2007 Manual count 31,661 25,866 3,833 1,586 0 274 102
2006 Manual count 31,734 26,326 3,644 1,398 0 236 130
2005 Manual count 30,738 25,583 3,445 1,399 0 208 103
2004 Manual count 29,944 25,237 3,029 1,418 7 168 92
2003 Manual count 23,321 19,190 2,325 1,373 0 343 90
2002 Manual count 29,062 24,176 2,818 1,628 4 309 131
2001 Manual count 28,624 24,264 2,775 1,222 0 263 100
2000 Manual count 25,869 21,590 2,673 1,127 2 354 125

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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 99681 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 99681 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. 25
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. 50
Raw counts Vehicle counts recorded at this count point. 432

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