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Road traffic statistics

36465

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A41
Road type Major
Start junction road A417 / M25 Junction 19 SPUR
End junction road M25 Junction 20
Link length 2.20km (1.37 miles)
Easting & Northing 508144,200493
Latitude & longitude 51.69279,-0.43678

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 20,924 16,736 3,329 461 24 286 113
2023 Estimated using AADF from previous year on this link 20,671 16,537 3,270 462 25 289 113
2022 Estimated using AADF from previous year on this link 20,237 16,137 3,207 468 27 310 114
2021 Manual count 18,756 15,035 2,879 455 27 280 107
2020 Estimated using AADF from previous year on this link 16,547 12,986 2,726 590 30 171 74
2019 Estimated using AADF from previous year on this link 21,975 17,783 3,185 661 24 230 115
2018 Estimated using AADF from previous year on this link 21,927 17,744 3,196 656 20 214 117
2017 Manual count 21,866 17,829 3,052 643 20 219 123
2016 Estimated using AADF from previous year on this link 26,547 21,140 4,169 659 40 330 249
2015 Estimated using AADF from previous year on this link 25,955 20,881 3,861 631 41 330 253
2014 Estimated using AADF from previous year on this link 24,910 20,269 3,473 591 41 319 257
2013 Estimated using AADF from previous year on this link 24,187 19,813 3,236 600 51 309 229
2012 Manual count 24,198 20,052 3,048 583 52 293 221
2011 Estimated using AADF from previous year on this link 25,939 21,261 3,063 1,051 40 283 281
2010 Manual count 25,963 21,389 2,994 1,015 45 287 278
2009 Manual count 26,633 22,324 3,101 584 36 427 197
2008 Estimated using AADF from previous year on this link 27,134 22,617 3,310 817 60 224 166
2007 Manual count 27,294 22,777 3,303 820 60 230 164
2006 Estimated using AADF from previous year on this link 29,541 24,255 3,447 1,327 32 340 172
2005 Estimated using AADF from previous year on this link 28,928 23,850 3,289 1,296 33 314 179
2004 Estimated using AADF from previous year on this link 28,972 24,018 3,145 1,296 32 327 186
2003 Manual count 28,200 23,616 2,825 1,213 32 321 225
2002 Estimated using AADF from previous year on this link 28,135 23,573 3,047 819 56 390 306
2001 Estimated using AADF from previous year on this link 27,408 22,909 3,023 797 52 382 297
2000 Manual count 26,521 22,220 2,863 804 59 346 288

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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 36465 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 36465 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. 192

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