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Road traffic statistics

6455

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4251
Road type Major
Start junction road A4146
End junction road A414
Link length 0.80km (0.50 miles)
Easting & Northing 505000,205832
Latitude & longitude 51.74137,-0.48065

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 Manual count 10,328 8,892 1,215 78 77 78 65
2023 Estimated using AADF from previous year on this link 10,094 8,406 1,492 87 73 50 59
2022 Estimated using AADF from previous year on this link 9,915 8,251 1,467 88 74 51 59
2021 Estimated using AADF from previous year on this link 9,264 7,725 1,354 85 83 47 55
2020 Estimated using AADF from previous year on this link 8,429 7,011 1,242 79 101 44 53
2019 Estimated using AADF from previous year on this link 10,871 9,231 1,407 90 88 59 84
2018 Estimated using AADF from previous year on this link 10,772 9,116 1,419 91 81 63 83
2017 Estimated using AADF from previous year on this link 10,856 9,218 1,393 90 73 64 92
2016 Manual count 10,861 9,286 1,323 89 76 63 98
2015 Estimated using AADF from previous year on this link 11,549 9,255 1,659 271 44 87 276
2014 Estimated using AADF from previous year on this link 11,295 9,076 1,582 282 47 99 256
2013 Estimated using AADF from previous year on this link 10,957 8,836 1,480 272 49 103 266
2012 Estimated using AADF from previous year on this link 10,950 8,915 1,424 265 49 93 254
2011 Estimated using AADF from previous year on this link 11,053 9,056 1,407 259 52 97 234
2010 Estimated using AADF from previous year on this link 10,958 9,083 1,261 251 48 115 248
2009 Estimated using AADF from previous year on this link 10,900 9,138 1,181 242 48 120 219
2008 Estimated using AADF from previous year on this link 10,698 8,942 1,164 263 48 108 221
2007 Manual count 10,911 9,143 1,140 260 42 113 255
2006 Estimated using AADF from previous year on this link 9,478 7,348 1,661 177 34 77 215
2005 Estimated using AADF from previous year on this link 9,632 7,490 1,637 184 22 89 232
2004 Estimated using AADF from previous year on this link 9,913 7,851 1,535 172 26 108 247
2003 Estimated using AADF from previous year on this link 9,748 7,751 1,394 139 32 163 301
2002 Estimated using AADF from previous year on this link 9,899 8,048 1,284 143 36 115 309
2001 Estimated using AADF from previous year on this link 9,686 7,921 1,198 149 34 111 307
2000 Estimated using AADF from previous year on this link 9,920 8,175 1,190 155 36 106 294

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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 6455 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 6455 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. 72

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