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Road traffic statistics

37122

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A411
Road type Major
Start junction road A411 Beechen Grove split
End junction road A4008
Link length 0.30km (0.19 miles)
Easting & Northing 511500,196280
Latitude & longitude 51.65427,-0.38959

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 Estimated using AADF from previous year on this link 32,991 28,064 4,099 599 3 190 39
2023 Estimated using AADF from previous year on this link 32,494 27,645 4,027 599 3 185 39
2022 Estimated using AADF from previous year on this link 31,928 27,135 3,959 608 3 187 39
2021 Estimated using AADF from previous year on this link 29,850 25,405 3,652 585 3 171 36
2020 Estimated using AADF from previous year on this link 27,152 23,059 3,350 545 4 162 35
2019 Estimated using AADF from previous year on this link 35,048 30,358 3,796 620 3 219 56
2018 Estimated using AADF from previous year on this link 34,720 29,982 3,830 620 3 233 55
2017 Manual count 34,989 30,316 3,759 617 3 236 61
2016 Estimated using AADF from previous year on this link 40,912 35,392 4,318 810 4 286 107
2015 Manual count 40,005 34,848 3,953 797 4 293 115
2014 Estimated using AADF from previous year on this link 35,993 31,190 3,764 665 4 271 104
2013 Estimated using AADF from previous year on this link 35,797 31,516 3,305 622 4 255 98
2012 Estimated using AADF from previous year on this link 35,944 31,696 3,268 622 4 254 104
2011 Estimated using AADF from previous year on this link 36,304 31,831 3,403 691 4 282 97
2010 Manual count 36,344 31,991 3,300 690 4 266 97
2009 Estimated using AADF from previous year on this link 34,704 29,788 3,966 684 2 224 42
2008 Estimated using AADF from previous year on this link 34,924 30,273 3,662 709 2 237 43
2007 Estimated using AADF from previous year on this link 35,392 30,858 3,497 739 2 255 43
2006 Manual count 36,635 32,381 3,206 752 3 251 45
2005 Estimated using AADF from previous year on this link 30,590 26,282 3,149 691 2 344 124
2004 Estimated using AADF from previous year on this link 31,211 26,956 3,068 721 2 340 126
2003 Estimated using AADF from previous year on this link 31,237 26,902 3,097 717 2 386 135
2002 Estimated using AADF from previous year on this link 31,297 27,284 2,841 676 2 344 152
2001 Manual count 31,365 27,339 2,836 702 2 340 148
2000 Manual count 32,126 28,210 2,740 727 1 351 98

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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 37122 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 37122 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. 144

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