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Road traffic statistics

48481

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A404
Road type Major
Start junction road A412
End junction road A4145
Link length 1.20km (0.75 miles)
Easting & Northing 506000,194073
Latitude & longitude 51.63549,-0.46974

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 28,189 23,567 3,939 528 103 119 35
2023 Estimated using AADF from previous year on this link 27,842 23,287 3,870 529 108 120 35
2022 Manual count 27,222 22,724 3,795 537 114 129 36
2021 Estimated using AADF from previous year on this link 22,525 18,697 3,118 572 86 99 39
2020 Estimated using AADF from previous year on this link 20,477 17,097 2,723 528 115 96 33
2019 Manual count 27,364 23,413 3,181 590 90 129 51
2018 Estimated using AADF from previous year on this link 27,584 23,132 3,788 489 91 117 57
2017 Manual count 27,522 23,243 3,618 481 93 120 60
2016 Estimated using AADF from previous year on this link 27,117 22,270 3,969 646 118 137 96
2015 Estimated using AADF from previous year on this link 26,437 21,927 3,634 633 126 140 104
2014 Estimated using AADF from previous year on this link 26,669 22,337 3,454 636 136 137 104
2013 Estimated using AADF from previous year on this link 26,423 22,571 3,034 591 140 129 98
2012 Manual count 26,524 22,700 2,999 591 142 129 105
2011 Estimated using AADF from previous year on this link 23,553 19,629 3,252 420 128 152 100
2010 Estimated using AADF from previous year on this link 23,540 19,728 3,154 415 116 143 100
2009 Estimated using AADF from previous year on this link 23,972 20,151 3,138 433 116 155 95
2008 Manual count 24,085 20,479 2,898 447 116 164 97
2007 Estimated using AADF from previous year on this link 21,103 17,800 2,469 656 80 124 54
2006 Estimated using AADF from previous year on this link 21,781 18,678 2,263 661 127 123 56
2005 Estimated using AADF from previous year on this link 21,672 18,622 2,227 648 82 118 57
2004 Manual count 22,123 19,099 2,171 678 96 117 58
2003 Estimated using AADF from previous year on this link 25,140 21,376 2,946 544 51 188 86
2002 Estimated using AADF from previous year on this link 25,157 21,679 2,702 512 57 167 97
2001 Manual count 25,205 21,722 2,697 526 55 165 95
2000 Estimated using AADF from previous year on this link 25,628 22,118 2,591 672 61 139 108

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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 48481 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 48481 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. 168

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