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Road traffic statistics

27080

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A404
Road type Major
Start junction road M25
End junction road A412
Link length 2.60km (1.62 miles)
Easting & Northing 505000,195870
Latitude & longitude 51.65183,-0.48364

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 16,781 13,111 3,201 401 16 18 50
2023 Estimated using AADF from previous year on this link 16,527 12,915 3,145 399 15 18 50
2022 Estimated using AADF from previous year on this link 16,241 12,677 3,092 405 16 18 49
2021 Estimated using AADF from previous year on this link 15,175 11,869 2,852 391 17 16 46
2020 Manual count 13,815 10,773 2,617 365 21 15 44
2019 Estimated using AADF from previous year on this link 18,550 14,736 3,255 407 58 89 64
2018 Estimated using AADF from previous year on this link 18,401 14,553 3,283 406 53 95 63
2017 Estimated using AADF from previous year on this link 18,509 14,715 3,223 405 48 96 69
2016 Estimated using AADF from previous year on this link 18,457 14,825 3,062 402 50 95 74
2015 Estimated using AADF from previous year on this link 17,971 14,597 2,803 394 53 97 80
2014 Estimated using AADF from previous year on this link 17,576 14,313 2,673 405 57 110 75
2013 Estimated using AADF from previous year on this link 17,026 13,935 2,499 399 59 115 77
2012 Manual count 17,035 14,059 2,405 393 60 103 74
2011 Estimated using AADF from previous year on this link 19,583 16,422 2,521 424 51 80 136
2010 Estimated using AADF from previous year on this link 19,385 16,471 2,259 417 46 94 144
2009 Estimated using AADF from previous year on this link 19,311 16,570 2,116 400 46 98 127
2008 Manual count 18,950 16,213 2,085 435 46 88 129
2007 Estimated using AADF from previous year on this link 19,403 16,199 2,503 509 23 116 76
2006 Manual count 20,007 16,998 2,294 520 38 115 80
2005 Estimated using AADF from previous year on this link 21,889 18,564 2,283 794 32 148 100
2004 Manual count 22,350 19,040 2,225 836 38 148 101
2003 Estimated using AADF from previous year on this link 20,379 17,402 1,995 720 25 186 76
2002 Manual count 20,407 17,649 1,830 676 28 166 86
2001 Estimated using AADF from previous year on this link 20,198 17,370 2,110 502 23 117 99
2000 Estimated using AADF from previous year on this link 19,867 17,030 2,118 509 24 113 97

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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 27080 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 27080 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. 144

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