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Road traffic statistics

48358

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A411
Road type Major
Start junction road Upton Rd
End junction road A4145
Link length 0.40km (0.25 miles)
Easting & Northing 510873,196365
Latitude & longitude 51.65515,-0.39863

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 21,253 17,790 2,529 357 22 115 462
2023 Estimated using AADF from previous year on this link 20,937 17,525 2,484 357 21 111 460
2022 Estimated using AADF from previous year on this link 20,575 17,202 2,443 362 22 113 456
2021 Estimated using AADF from previous year on this link 19,235 16,105 2,253 349 24 103 424
2020 Estimated using AADF from previous year on this link 17,519 14,618 2,067 325 30 97 411
2019 Estimated using AADF from previous year on this link 22,740 19,245 2,342 370 26 132 651
2018 Estimated using AADF from previous year on this link 22,524 19,007 2,363 371 24 141 643
2017 Manual count 22,758 19,218 2,319 369 22 142 709
2016 Estimated using AADF from previous year on this link 26,866 22,124 3,379 351 33 233 779
2015 Estimated using AADF from previous year on this link 26,302 21,784 3,093 346 35 238 841
2014 Estimated using AADF from previous year on this link 26,564 22,192 2,941 349 38 234 848
2013 Estimated using AADF from previous year on this link 26,353 22,424 2,583 327 39 220 799
2012 Manual count 26,503 22,552 2,554 329 39 220 849
2011 Estimated using AADF from previous year on this link 21,532 17,612 2,495 380 88 202 843
2010 Manual count 21,538 17,701 2,420 382 80 191 844
2009 Estimated using AADF from previous year on this link 26,946 23,214 2,488 397 46 151 696
2008 Manual count 27,168 23,591 2,297 408 46 160 712
2007 Estimated using AADF from previous year on this link 22,289 17,835 2,989 516 28 271 678
2006 Estimated using AADF from previous year on this link 22,950 18,715 2,740 523 45 268 704
2005 Estimated using AADF from previous year on this link 22,842 18,659 2,696 513 29 258 716
2004 Estimated using AADF from previous year on this link 23,281 19,137 2,628 533 34 255 728
2003 Estimated using AADF from previous year on this link 23,349 19,099 2,652 527 42 289 782
2002 Estimated using AADF from previous year on this link 23,428 19,370 2,433 491 47 258 876
2001 Manual count 23,454 19,409 2,428 505 45 255 857
2000 Estimated using AADF from previous year on this link 27,907 24,010 2,416 573 71 239 669

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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 48358 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 48358 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. 27
Raw counts Vehicle counts recorded at this count point. 72

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