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Road traffic statistics

19016

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4251
Road type Major
Start junction road A41
End junction road B4505
Link length 1.20km (0.75 miles)
Easting & Northing 503450,205980
Latitude & longitude 51.74299,-0.50304

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 9,069 7,330 1,362 258 55 41 79
2023 Estimated using AADF from previous year on this link 8,959 7,243 1,338 258 58 41 79
2022 Estimated using AADF from previous year on this link 8,767 7,068 1,312 262 61 45 80
2021 Estimated using AADF from previous year on this link 8,133 6,585 1,178 255 62 40 75
2020 Estimated using AADF from previous year on this link 7,389 6,022 1,029 236 83 39 63
2019 Estimated using AADF from previous year on this link 9,863 8,246 1,202 264 65 52 98
2018 Manual count 9,845 8,228 1,206 263 54 49 100
2017 Estimated using AADF from previous year on this link 9,972 7,873 1,668 253 39 97 82
2016 Estimated using AADF from previous year on this link 9,888 7,883 1,576 246 39 99 84
2015 Estimated using AADF from previous year on this link 9,666 7,786 1,459 237 39 99 85
2014 Estimated using AADF from previous year on this link 9,662 7,879 1,363 233 39 104 83
2013 Estimated using AADF from previous year on this link 9,450 7,770 1,268 230 49 101 81
2012 Manual count 9,514 7,916 1,181 228 50 100 88
2011 Estimated using AADF from previous year on this link 10,403 8,520 1,380 294 49 98 111
2010 Estimated using AADF from previous year on this link 10,284 8,495 1,304 288 56 90 107
2009 Estimated using AADF from previous year on this link 10,414 8,659 1,268 282 54 102 103
2008 Manual count 10,523 8,765 1,245 312 47 98 103
2007 Estimated using AADF from previous year on this link 10,891 8,947 1,353 416 53 90 85
2006 Manual count 10,964 9,186 1,227 382 51 90 79
2005 Estimated using AADF from previous year on this link 11,488 9,407 1,551 319 26 126 85
2004 Estimated using AADF from previous year on this link 11,440 9,417 1,477 325 24 136 85
2003 Estimated using AADF from previous year on this link 11,408 9,407 1,465 304 25 133 99
2002 Estimated using AADF from previous year on this link 11,131 9,323 1,300 305 30 108 95
2001 Estimated using AADF from previous year on this link 10,909 9,212 1,205 293 28 110 89
2000 Manual count 10,833 9,185 1,165 293 32 99 91

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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 19016 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 19016 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. 120

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