Skip to main content
Road traffic statistics

58402

Details

AADF latest year 2024
Region South East
Local authority Milton Keynes
Road name A421
Road type Major
Start junction road A421 split
End junction road A4146
Link length 4.40km (2.73 miles)
Easting & Northing 488000,237200
Latitude & longitude 52.02625,-0.7188

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 31,071 25,445 3,907 1,529 71 126 64
2023 Manual count 30,716 25,142 3,839 1,544 74 127 64
2022 Estimated using AADF from previous year on this link 25,831 21,018 3,407 1,250 120 112 44
2021 Estimated using AADF from previous year on this link 23,995 19,583 3,058 1,212 123 101 41
2020 Estimated using AADF from previous year on this link 21,846 17,908 2,671 1,135 165 97 35
2019 Manual count 29,094 24,522 3,120 1,266 129 131 54
2018 Estimated using AADF from previous year on this link 27,129 21,773 3,626 1,600 107 77 52
2017 Estimated using AADF from previous year on this link 27,051 21,877 3,463 1,577 110 79 55
2016 Estimated using AADF from previous year on this link 26,858 21,904 3,272 1,544 109 81 57
2015 Manual count 26,279 21,567 2,995 1,572 117 83 61
2014 Estimated using AADF from previous year on this link 23,295 19,635 2,428 1,042 76 123 68
2013 Estimated using AADF from previous year on this link 23,124 19,841 2,132 971 78 116 64
2012 Estimated using AADF from previous year on this link 23,223 19,954 2,108 978 79 116 68
2011 Estimated using AADF from previous year on this link 23,488 20,039 2,195 1,063 84 128 63
2010 Manual count 23,512 20,140 2,129 1,059 76 121 63
2009 Estimated using AADF from previous year on this link 30,056 25,051 3,184 1,615 315 114 92
2008 Manual count 30,280 25,459 2,940 1,666 315 121 94
2007 Manual count 24,864 21,120 1,652 1,877 109 135 80
2006 Manual count 25,058 21,399 2,243 1,204 83 112 100
2005 Manual count 23,388 19,465 2,130 1,498 119 168 127
2004 Manual count 23,840 20,192 1,985 1,446 90 64 153
2003 Manual count 22,382 19,083 1,848 1,158 100 194 99
2002 Estimated using AADF from previous year on this link 21,493 18,444 1,625 1,204 6 82 138
2001 Manual count 21,543 18,481 1,621 1,224 6 81 136
2000 Manual count 23,455 20,315 1,822 1,036 84 173 109

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 58402 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 58402 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. 288

To apply more filters to downloads, or retrieve data split into pages you can use our API.