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Road traffic statistics

78351

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A412
Road type Major
Start junction road A412 Denham Way
End junction road Long Lane
Link length 0.40km (0.25 miles)
Easting & Northing 503910,193500
Latitude & longitude 51.63073,-0.50009

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 15,159 12,490 2,226 238 100 119 86
2023 Estimated from nearby links 14,929 12,304 2,187 237 99 115 86
2022 Estimated from nearby links 14,669 12,077 2,151 240 101 117 85
2021 Estimated from nearby links 13,708 11,307 1,984 232 113 107 79
2020 Estimated from nearby links 12,476 10,263 1,820 216 138 101 77
2019 Estimated from nearby links 16,077 13,511 2,062 246 121 136 122
2018 Estimated from nearby links 15,936 13,344 2,080 246 113 145 120
2017 Estimated from nearby links 16,059 13,493 2,042 245 99 147 133
2016 Estimated from nearby links 18,149 14,987 2,625 279 52 99 159
2015 Estimated from nearby links 17,704 14,757 2,403 272 55 101 171
2014 Estimated from nearby links 17,319 14,470 2,291 283 60 115 159
2013 Estimated from nearby links 16,791 14,088 2,143 275 61 120 165
2012 Estimated from nearby links 18,072 14,755 2,659 323 103 95 241
2011 Estimated from nearby links 18,273 14,818 2,769 357 109 105 224
2010 Estimated from nearby links 18,257 14,893 2,685 356 99 99 224
2009 Estimated from nearby links 18,572 15,212 2,672 368 99 107 213
2008 Estimated from nearby links 18,639 15,459 2,467 381 99 114 218
2007 Estimated from nearby links 18,845 15,759 2,356 393 88 122 215
2006 Estimated from nearby links 18,755 15,951 1,990 484 102 154 176
2005 Estimated from nearby links 18,666 15,904 1,959 476 65 148 179
2004 Estimated from nearby links 18,594 15,924 1,777 570 164 173 150
2003 Estimated from nearby links 18,608 15,892 1,793 565 202 197 161
2002 Estimated from nearby links 18,250 15,658 1,775 415 84 171 231
2001 Estimated from nearby links 18,285 15,690 1,772 429 80 169 225
2000 Estimated from nearby links 18,513 15,899 1,869 419 73 152 174

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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 78351 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 78351 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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