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Road traffic statistics

81471

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A411
Road type Major
Start junction road A4008
End junction road A4008
Link length 1.80km (1.12 miles)
Easting & Northing 511750,196330
Latitude & longitude 51.65467,-0.38596

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 33,175 28,309 4,177 349 0 264 77
2023 Estimated using AADF from previous year on this link 32,672 27,886 4,103 349 0 256 76
2022 Manual count 32,097 27,372 4,035 355 0 260 76
2021 Estimated using AADF from previous year on this link 37,029 31,531 4,769 435 3 286 9
2020 Manual count 33,677 28,620 4,375 404 4 270 8
2019 Estimated using AADF from previous year on this link 39,610 34,291 4,531 472 0 269 47
2018 Estimated using AADF from previous year on this link 39,243 33,866 4,571 473 0 286 47
2017 Manual count 39,542 34,243 4,487 470 0 290 52
2016 Estimated using AADF from previous year on this link 30,121 24,347 5,001 500 2 205 67
2015 Estimated using AADF from previous year on this link 29,324 23,973 4,578 490 2 210 72
2014 Estimated using AADF from previous year on this link 29,545 24,421 4,352 492 2 207 73
2013 Estimated using AADF from previous year on this link 29,220 24,677 3,822 458 2 194 69
2012 Manual count 29,326 24,818 3,779 462 2 194 73
2011 Estimated from nearby links 30,513 25,925 3,818 419 0 231 120

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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 81471 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 81471 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. 14
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. 28
Raw counts Vehicle counts recorded at this count point. 96

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