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Road traffic statistics

57110

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4147
Road type Major
Start junction road Greenacres, Hemel Hempstead
End junction road King Harry Lane roundabout
Link length 4.60km (2.86 miles)
Easting & Northing 510346,205975
Latitude & longitude 51.74163,-0.4032

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 9,704 8,402 990 134 32 65 113
2023 Estimated using AADF from previous year on this link 9,371 7,881 1,177 184 34 51 79
2022 Estimated using AADF from previous year on this link 9,165 7,690 1,154 186 35 55 79
2021 Estimated using AADF from previous year on this link 8,506 7,165 1,036 181 36 49 74
2020 Estimated using AADF from previous year on this link 7,734 6,552 905 167 49 48 63
2019 Estimated using AADF from previous year on this link 10,378 8,973 1,057 187 38 64 98
2018 Estimated using AADF from previous year on this link 10,358 8,953 1,060 186 31 59 99
2017 Estimated using AADF from previous year on this link 10,357 8,996 1,013 183 32 61 105
2016 Manual count 10,311 9,007 957 178 32 63 107
2015 Estimated using AADF from previous year on this link 11,869 9,935 1,473 245 62 100 115
2014 Estimated using AADF from previous year on this link 11,891 10,054 1,377 243 62 105 113
2013 Estimated using AADF from previous year on this link 11,645 9,915 1,281 237 78 102 110
2012 Estimated using AADF from previous year on this link 11,746 10,102 1,193 231 78 101 120
2011 Manual count 11,984 10,393 1,137 223 84 109 122
2010 Estimated using AADF from previous year on this link 10,709 8,984 1,213 232 59 92 188
2009 Estimated using AADF from previous year on this link 10,848 9,158 1,179 225 57 104 182
2008 Estimated using AADF from previous year on this link 10,953 9,269 1,157 246 49 100 181
2007 Manual count 11,304 9,625 1,157 258 49 101 163
2006 Estimated using AADF from previous year on this link 12,115 10,745 874 256 38 106 134
2005 Manual count 11,804 10,452 834 251 40 125 142
2004 Manual count 10,457 9,046 844 259 29 175 133
2003 Estimated using AADF from previous year on this link 11,511 9,797 1,107 372 48 86 149
2002 Manual count 11,276 9,709 982 372 57 70 143
2001 Estimated using AADF from previous year on this link 12,320 10,560 1,175 388 47 116 81
2000 Manual count 12,237 10,528 1,136 385 54 105 83

Download data

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 57110 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 57110 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. 192

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