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Road traffic statistics

78354

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4251
Road type Major
Start junction road Home Park Mill Link Rd, Kings Langley
End junction road M25 Jn20
Link length 0.60km (0.37 miles)
Easting & Northing 507570,201750
Latitude & longitude 51.7042,-0.4447

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 from nearby links 13,289 11,150 1,820 153 49 76 89
2023 Estimated from nearby links 13,602 11,282 2,005 189 58 78 47
2022 Estimated from nearby links 13,364 11,074 1,972 192 59 79 47
2021 Estimated from nearby links 12,488 10,368 1,819 185 66 73 44
2020 Estimated from nearby links 11,362 9,411 1,668 172 81 69 42
2019 Estimated from nearby links 14,636 12,389 1,891 196 71 93 67
2018 Estimated from nearby links 14,505 12,236 1,907 197 66 99 66
2017 Estimated from nearby links 14,613 12,372 1,872 196 58 100 73
2016 Estimated from nearby links 14,615 12,464 1,778 195 61 99 78
2015 Estimated from nearby links 14,760 11,842 2,482 279 27 57 100
2014 Estimated from nearby links 14,426 11,612 2,367 290 29 65 93
2013 Estimated from nearby links 13,963 11,305 2,214 280 30 68 96
2012 Estimated from nearby links 13,962 11,406 2,130 273 31 61 92
2011 Estimated from nearby links 14,109 11,586 2,106 269 32 63 85
2010 Estimated from nearby links 13,935 11,622 1,887 261 29 75 90
2009 Estimated from nearby links 13,868 11,691 1,766 253 29 79 79
2008 Estimated from nearby links 13,605 11,439 1,740 276 29 71 79
2007 Estimated from nearby links 13,840 11,696 1,704 275 26 74 91
2006 Estimated from nearby links 12,696 10,117 1,792 627 98 77 83
2005 Estimated from nearby links 12,911 10,313 1,765 655 62 89 89
2004 Estimated from nearby links 13,286 10,810 1,656 617 73 108 95
2003 Estimated from nearby links 12,971 10,671 1,504 515 91 165 116
2002 Estimated from nearby links 13,799 11,780 1,395 427 23 72 125
2001 Estimated from nearby links 13,542 11,595 1,301 451 22 70 125
2000 Estimated from nearby links 13,922 11,966 1,292 478 23 67 119

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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 78354 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 78354 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. 25
Raw counts Vehicle counts recorded at this count point. 0

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