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Road traffic statistics

47714

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4145
Road type Major
Start junction road A4178 roundabout
End junction road A411
Link length 0.20km (0.12 miles)
Easting & Northing 510887,196115
Latitude & longitude 51.6529,-0.3985

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 using AADF from previous year on this link 9,977 8,066 1,258 132 154 423 98
2023 Estimated using AADF from previous year on this link 9,821 7,945 1,236 132 152 410 98
2022 Manual count 9,661 7,799 1,215 134 155 416 97
2021 Estimated using AADF from previous year on this link 9,324 7,813 1,273 150 107 22 66
2020 Estimated using AADF from previous year on this link 8,484 7,092 1,168 140 132 21 64
2019 Estimated using AADF from previous year on this link 10,948 9,336 1,324 159 115 28 101
2018 Estimated using AADF from previous year on this link 10,845 9,221 1,335 159 105 30 100
2017 Estimated using AADF from previous year on this link 10,933 9,323 1,311 159 95 31 110
2016 Estimated using AADF from previous year on this link 10,944 9,393 1,245 158 99 30 118
2015 Estimated using AADF from previous year on this link 10,702 9,248 1,140 156 106 31 127
2014 Manual count 10,470 9,069 1,087 161 114 35 118
2013 Estimated using AADF from previous year on this link 10,366 8,630 1,372 121 114 87 155
2012 Estimated using AADF from previous year on this link 10,373 8,707 1,320 119 115 78 148
2011 Estimated using AADF from previous year on this link 10,486 8,845 1,305 118 122 82 136
2010 Estimated using AADF from previous year on this link 10,396 8,871 1,169 115 111 97 144
2009 Estimated using AADF from previous year on this link 10,359 8,925 1,095 110 111 102 127
2008 Estimated using AADF from previous year on this link 10,150 8,733 1,079 118 111 92 128
2007 Estimated using AADF from previous year on this link 10,348 8,929 1,057 118 99 97 147
2006 Manual count 10,462 9,073 1,003 125 159 100 161
2005 Estimated using AADF from previous year on this link 11,891 10,075 1,336 247 74 96 137
2004 Estimated using AADF from previous year on this link 12,306 10,561 1,253 230 88 116 146
2003 Estimated using AADF from previous year on this link 12,104 10,426 1,138 186 109 176 178
2002 Estimated using AADF from previous year on this link 12,369 10,826 1,048 188 122 124 183
2001 Manual count 12,130 10,656 978 196 117 119 181
2000 Estimated using AADF from previous year on this link 10,596 9,147 954 198 114 143 154

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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 47714 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 47714 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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