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Road traffic statistics

8383

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A1(M)
Road type Major
Start junction road 3
End junction road 4
Link length 3.40km (2.11 miles)
Easting & Northing 522400,209935
Latitude & longitude 51.77472,-0.22731

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 91,366 68,921 17,298 4,689 0 341 117
2023 Manual count 91,785 68,522 18,100 4,653 0 429 80
2022 Manual count 91,743 68,792 17,659 4,803 0 402 86
2021 Estimated using AADF from previous year on this link 101,647 72,268 23,552 5,588 0 217 21
2020 Manual count 88,659 63,216 20,149 5,060 0 213 21
2019 Automatic counter 96,160 73,839 15,350 6,264 0 545 161
2018 Manual count 95,906 73,362 15,537 6,278 0 567 162
2017 Automatic counter 92,996 72,469 13,262 6,502 0 630 134
2016 Manual count 99,750 78,796 13,341 6,725 0 739 149
2015 Manual count 98,819 76,553 15,551 5,951 0 589 177
2014 Manual count 96,700 75,903 14,283 5,709 0 663 143
2013 Manual count 93,963 73,947 13,878 5,475 0 516 148
2012 Manual count 96,026 74,897 14,735 5,761 0 460 172
2011 Manual count 79,680 62,927 11,223 4,801 0 598 131
2010 Manual count 80,406 63,030 11,384 5,090 0 730 172
2009 Manual count 92,217 72,662 13,085 5,530 0 738 202
2008 Manual count 98,807 76,733 14,434 6,611 0 792 237
2007 Manual count 97,146 76,515 12,801 6,669 0 823 338
2006 Manual count 91,078 69,364 13,403 7,153 0 765 393
2005 Estimated using AADF from previous year on this link 96,777 75,964 13,263 6,385 0 849 316
2004 Manual count 96,433 76,887 11,949 6,456 0 857 284
2003 Estimated using AADF from previous year on this link 97,058 77,538 10,890 7,603 0 774 253
2002 Manual count 95,535 76,317 10,421 7,863 0 719 215
2001 Manual count 89,878 71,808 10,856 6,090 0 877 247
2000 Manual count 95,724 76,609 11,311 6,650 0 808 346

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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 8383 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 8383 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. 480

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