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Road traffic statistics

78213

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4147
Road type Major
Start junction road A414
End junction road Greenacres
Link length 1.30km (0.81 miles)
Easting & Northing 508160,206750
Latitude & longitude 51.74902,-0.43461

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 17,303 14,667 2,060 247 50 128 201
2023 Estimated using AADF from previous year on this link 15,221 12,587 2,256 182 65 105 91
2022 Estimated using AADF from previous year on this link 14,954 12,355 2,218 185 66 106 90
2021 Estimated using AADF from previous year on this link 13,972 11,567 2,046 177 74 97 84
2020 Estimated using AADF from previous year on this link 12,715 10,499 1,877 165 91 92 81
2019 Estimated using AADF from previous year on this link 16,390 13,823 2,127 188 79 124 129
2018 Estimated using AADF from previous year on this link 16,246 13,652 2,146 189 72 132 127
2017 Estimated using AADF from previous year on this link 16,372 13,804 2,106 188 65 134 140
2016 Manual count 16,377 13,906 2,001 188 68 132 150
2015 Estimated using AADF from previous year on this link 19,325 15,144 2,998 824 76 85 274
2014 Estimated using AADF from previous year on this link 18,922 14,850 2,859 862 82 97 254
2013 Estimated using AADF from previous year on this link 18,314 14,458 2,673 817 84 101 264
2012 Estimated using AADF from previous year on this link 18,273 14,587 2,572 771 85 91 252
2011 Estimated using AADF from previous year on this link 18,417 14,818 2,542 730 90 95 232
2010 Estimated using AADF from previous year on this link 18,186 14,863 2,277 689 81 112 245
2009 Estimated using AADF from previous year on this link 18,113 14,952 2,132 695 81 118 216
2008 Estimated using AADF from previous year on this link 17,803 14,630 2,101 748 81 106 218
2007 Manual count 18,113 14,959 2,059 733 72 112 250
2006 Estimated using AADF from previous year on this link 16,063 13,103 2,138 562 152 96 164
2005 Estimated using AADF from previous year on this link 16,336 13,357 2,106 585 97 111 177
2004 Estimated using AADF from previous year on this link 16,845 14,001 1,976 546 114 135 187
2003 Manual count 16,496 13,820 1,794 448 141 206 228
2002 Estimated using AADF from previous year on this link 16,841 14,351 1,652 458 158 145 235
2001 Estimated using AADF from previous year on this link 16,521 14,125 1,541 482 152 140 233
2000 Estimated using AADF from previous year on this link 16,967 14,577 1,530 504 159 134 222

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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 78213 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 78213 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. 96

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