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Road traffic statistics

37132

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A4147
Road type Major
Start junction road A5183
End junction road A1081
Link length 1.00km (0.62 miles)
Easting & Northing 514100,207700
Latitude & longitude 51.75638,-0.34829

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 10,139 8,738 1,177 81 31 87 56
2023 Estimated using AADF from previous year on this link 9,984 8,607 1,156 80 30 84 56
2022 Manual count 9,808 8,449 1,137 81 31 86 55
2021 Estimated using AADF from previous year on this link 9,359 7,928 1,210 128 67 41 52
2020 Estimated using AADF from previous year on this link 8,515 7,196 1,110 119 82 39 50
2019 Estimated using AADF from previous year on this link 11,000 9,474 1,258 136 71 52 79
2018 Estimated using AADF from previous year on this link 10,897 9,356 1,269 137 65 56 79
2017 Estimated using AADF from previous year on this link 10,986 9,461 1,246 136 59 56 87
2016 Estimated using AADF from previous year on this link 10,999 9,531 1,184 136 62 56 93
2015 Estimated using AADF from previous year on this link 10,759 9,384 1,084 134 66 57 100
2014 Estimated using AADF from previous year on this link 10,533 9,202 1,033 139 71 65 93
2013 Manual count 10,225 8,959 966 136 73 68 97
2012 Estimated using AADF from previous year on this link 10,964 9,389 1,348 86 66 53 88
2011 Estimated using AADF from previous year on this link 11,091 9,538 1,332 85 70 55 81
2010 Estimated using AADF from previous year on this link 10,994 9,567 1,193 83 63 65 86
2009 Estimated using AADF from previous year on this link 10,966 9,625 1,117 79 63 69 76
2008 Estimated using AADF from previous year on this link 10,742 9,418 1,100 86 63 62 76
2007 Estimated using AADF from previous year on this link 10,946 9,631 1,078 85 56 65 87
2006 Estimated using AADF from previous year on this link 11,064 9,787 1,023 90 90 68 96
2005 Manual count 11,260 9,976 1,008 95 57 78 103
2004 Estimated using AADF from previous year on this link 10,247 8,876 1,025 169 25 93 84
2003 Estimated using AADF from previous year on this link 10,074 8,761 931 137 31 141 104
2002 Estimated using AADF from previous year on this link 10,301 9,098 857 141 34 99 106
2001 Estimated using AADF from previous year on this link 10,103 8,955 800 147 33 95 106
2000 Estimated using AADF from previous year on this link 10,382 9,242 794 153 34 91 102

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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 37132 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 37132 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. 72

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