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Road traffic statistics

8410

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4251
Road type Major
Start junction road A414
End junction road Nash Mills Lane
Link length 2.10km (1.30 miles)
Easting & Northing 506195,205000
Latitude & longitude 51.73367,-0.4636

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 10,217 8,553 1,377 79 128 155 53
2023 Estimated using AADF from previous year on this link 10,059 8,425 1,352 78 127 150 53
2022 Estimated using AADF from previous year on this link 9,884 8,270 1,330 80 129 152 53
2021 Manual count 9,234 7,743 1,227 77 144 139 49
2020 Estimated using AADF from previous year on this link 10,473 8,848 1,361 114 73 81 69
2019 Estimated using AADF from previous year on this link 13,539 11,648 1,542 130 64 109 109
2018 Estimated using AADF from previous year on this link 13,414 11,504 1,555 130 58 117 108
2017 Estimated using AADF from previous year on this link 13,526 11,632 1,527 130 53 118 119
2016 Estimated using AADF from previous year on this link 13,542 11,718 1,450 129 55 117 128
2015 Estimated using AADF from previous year on this link 13,249 11,538 1,328 126 59 119 138
2014 Estimated using AADF from previous year on this link 12,974 11,314 1,266 130 64 135 128
2013 Manual count 12,599 11,015 1,184 125 66 141 133
2012 Estimated using AADF from previous year on this link 13,862 11,451 2,040 184 68 110 77
2011 Estimated using AADF from previous year on this link 14,016 11,633 2,016 181 72 115 71
2010 Estimated using AADF from previous year on this link 13,863 11,668 1,806 178 66 136 75
2009 Estimated using AADF from previous year on this link 13,809 11,738 1,691 171 66 143 66
2008 Estimated using AADF from previous year on this link 13,533 11,485 1,666 188 66 128 66
2007 Estimated using AADF from previous year on this link 13,772 11,743 1,631 188 60 134 76
2006 Estimated using AADF from previous year on this link 13,911 11,934 1,550 203 96 141 83
2005 Manual count 14,157 12,165 1,527 214 60 162 89
2004 Estimated using AADF from previous year on this link 12,523 10,394 1,486 434 44 110 99
2003 Estimated using AADF from previous year on this link 12,257 10,261 1,350 358 55 168 120
2002 Manual count 12,508 10,655 1,243 368 61 118 124
2001 Manual count 14,447 12,616 1,342 205 80 160 124
2000 Manual count 13,462 11,640 1,308 248 59 128 138

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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 8410 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 8410 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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