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Road traffic statistics

47100

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A411
Road type Major
Start junction road A41(T)
End junction road A5183
Link length 1.60km (0.99 miles)
Easting & Northing 517119,195191
Latitude & longitude 51.64334,-0.30877

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 14,379 11,878 2,152 109 30 141 99
2023 Estimated using AADF from previous year on this link 13,137 10,665 1,984 284 34 99 105
2022 Estimated using AADF from previous year on this link 12,852 10,408 1,946 287 36 106 106
2021 Estimated using AADF from previous year on this link 11,917 9,697 1,747 279 37 96 99
2020 Estimated using AADF from previous year on this link 10,826 8,867 1,525 257 49 93 84
2019 Manual count 14,467 12,143 1,782 287 38 125 131
2018 Estimated using AADF from previous year on this link 13,908 11,362 2,071 279 38 64 131
2017 Estimated using AADF from previous year on this link 13,870 11,416 1,978 272 39 66 138
2016 Estimated using AADF from previous year on this link 13,772 11,430 1,869 263 39 67 142
2015 Manual count 13,478 11,290 1,730 246 39 67 144
2014 Estimated using AADF from previous year on this link 14,895 12,078 2,350 291 14 70 107
2013 Estimated using AADF from previous year on this link 14,457 11,806 2,189 299 18 68 95
2012 Estimated using AADF from previous year on this link 14,455 11,948 2,062 288 18 64 92
2011 Estimated using AADF from previous year on this link 14,458 12,035 1,980 286 19 66 91
2010 Manual count 14,487 12,108 1,935 287 22 67 90
2009 Estimated using AADF from previous year on this link 11,992 9,380 2,076 313 38 104 119
2008 Estimated using AADF from previous year on this link 12,088 9,494 2,037 338 33 100 119
2007 Estimated using AADF from previous year on this link 12,453 9,858 2,037 351 33 100 107
2006 Estimated using AADF from previous year on this link 12,483 10,122 1,847 315 33 100 99
2005 Estimated using AADF from previous year on this link 12,137 9,846 1,761 307 35 118 105
2004 Estimated using AADF from previous year on this link 12,082 9,856 1,677 314 33 130 105
2003 Estimated using AADF from previous year on this link 12,051 9,846 1,663 297 33 124 121
2002 Estimated using AADF from previous year on this link 11,749 9,758 1,476 296 40 102 117
2001 Manual count 11,506 9,642 1,368 283 38 104 109
2000 Estimated using AADF from previous year on this link 14,447 12,214 1,524 427 45 149 133

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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 47100 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 47100 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. 120

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