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Road traffic statistics

48114

Details

AADF latest year 2024
Region East of England
Local authority Hertfordshire
Road name A412
Road type Major
Start junction road A412 Uxbridge Rd
End junction road M25
Link length 1.10km (0.68 miles)
Easting & Northing 503389,193966
Latitude & longitude 51.63501,-0.50748

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 18,403 14,163 3,479 687 1 53 20
2023 Estimated using AADF from previous year on this link 18,177 13,995 3,419 690 1 54 20
2022 Manual count 17,806 13,657 3,352 718 1 58 20
2021 Estimated using AADF from previous year on this link 17,008 12,813 3,178 898 4 87 31
2020 Estimated using AADF from previous year on this link 15,437 11,717 2,775 834 6 84 27
2019 Estimated using AADF from previous year on this link 20,377 16,045 3,242 935 4 114 41
2018 Manual count 20,338 16,010 3,253 928 4 106 42
2017 Estimated using AADF from previous year on this link 20,273 16,139 3,309 650 6 120 55
2016 Estimated using AADF from previous year on this link 20,097 16,159 3,127 632 6 123 56
2015 Estimated using AADF from previous year on this link 19,636 15,961 2,895 600 6 123 57
2014 Estimated using AADF from previous year on this link 18,838 15,493 2,605 563 6 119 58
2013 Manual count 18,309 15,144 2,427 571 8 115 52
2012 Estimated using AADF from previous year on this link 17,706 14,377 2,550 624 6 113 43
2011 Estimated using AADF from previous year on this link 17,704 14,481 2,449 616 6 116 42
2010 Estimated using AADF from previous year on this link 17,741 14,569 2,394 618 7 118 42
2009 Manual count 18,048 14,927 2,333 616 7 133 39
2008 Estimated using AADF from previous year on this link 18,219 14,300 2,611 1,129 5 142 37
2007 Estimated using AADF from previous year on this link 18,315 14,401 2,605 1,128 5 146 35
2006 Estimated using AADF from previous year on this link 18,120 14,503 2,352 1,084 5 144 37
2005 Estimated using AADF from previous year on this link 17,729 14,261 2,244 1,051 5 134 39
2004 Estimated using AADF from previous year on this link 17,727 14,361 2,145 1,042 5 138 41
2003 Estimated using AADF from previous year on this link 17,202 14,121 1,927 968 5 136 50
2002 Manual count 16,658 13,817 1,741 924 6 126 50
2001 Estimated using AADF from previous year on this link 18,889 14,961 2,959 771 5 141 57
2000 Estimated using AADF from previous year on this link 18,268 14,511 2,802 772 5 128 55

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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 48114 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 48114 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. 120

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