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Road traffic statistics

56180

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A1081
Road type Major
Start junction road The Common, Harpenden
End junction road LA Boundary
Link length 2.50km (1.55 miles)
Easting & Northing 510608,216543
Latitude & longitude 51.83656,-0.39604

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 14,898 12,754 1,804 170 33 71 99
2023 Estimated using AADF from previous year on this link 14,716 12,603 1,772 171 35 72 99
2022 Manual count 14,389 12,298 1,738 176 37 77 100
2021 Estimated using AADF from previous year on this link 10,431 8,576 1,553 171 20 64 68
2020 Estimated using AADF from previous year on this link 9,476 7,842 1,356 158 26 62 57
2019 Estimated using AADF from previous year on this link 12,673 10,739 1,584 178 21 83 89
2018 Estimated using AADF from previous year on this link 12,649 10,716 1,589 176 17 77 90
2017 Manual count 12,631 10,767 1,518 172 17 79 95
2016 Estimated using AADF from previous year on this link 15,661 12,929 2,174 314 50 112 132
2015 Estimated using AADF from previous year on this link 15,331 12,770 2,013 302 50 112 134
2014 Estimated using AADF from previous year on this link 14,735 12,396 1,811 283 50 108 136
2013 Estimated using AADF from previous year on this link 14,318 12,117 1,687 288 63 105 121
2012 Manual count 14,348 12,263 1,589 278 64 99 117
2011 Estimated using AADF from previous year on this link 19,342 16,206 2,532 338 64 102 164
2010 Estimated using AADF from previous year on this link 19,388 16,304 2,476 342 74 104 162
2009 Estimated using AADF from previous year on this link 19,719 16,705 2,413 332 72 117 152
2008 Manual count 19,873 16,925 2,336 355 62 112 145
2007 Estimated using AADF from previous year on this link 17,033 14,561 1,915 285 60 136 136
2006 Manual count 16,950 14,664 1,729 278 60 136 143
2005 Estimated using AADF from previous year on this link 16,835 14,736 1,560 330 21 96 113
2004 Manual count 16,879 14,841 1,491 330 20 100 117
2003 Estimated using AADF from previous year on this link 16,828 14,405 1,788 388 20 128 119
2002 Manual count 16,323 14,095 1,616 373 24 118 121
2001 Manual count 16,369 14,239 1,549 282 27 176 123
2000 Manual count 16,099 13,735 1,660 358 45 206 140

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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 56180 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 56180 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. 216

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