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Road traffic statistics

6430

Details

AADF latest year 2024
Region South East
Local authority Buckinghamshire
Road name A40
Road type Major
Start junction road A413
End junction road A412
Link length 1.30km (0.81 miles)
Easting & Northing 502700,186880
Latitude & longitude 51.57145,-0.51951

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 30,967 25,257 4,190 1,112 13 275 132
2023 Manual count 30,598 24,956 4,117 1,114 13 278 133
2022 Estimated using AADF from previous year on this link 29,708 23,649 4,498 1,104 11 303 154
2021 Manual count 27,564 22,034 4,038 1,074 12 274 144
2020 Manual count 22,256 17,564 3,451 981 61 174 84
2019 Estimated using AADF from previous year on this link 28,270 23,148 3,859 876 23 243 144
2018 Estimated using AADF from previous year on this link 28,209 23,097 3,872 868 19 226 146
2017 Manual count 28,137 23,208 3,698 848 20 231 154
2016 Estimated using AADF from previous year on this link 31,878 26,515 4,015 748 67 390 211
2015 Manual count 31,220 26,190 3,718 710 67 389 214
2014 Estimated using AADF from previous year on this link 26,750 21,779 3,795 499 24 451 226
2013 Estimated using AADF from previous year on this link 25,966 21,288 3,536 504 30 437 201
2012 Manual count 25,963 21,546 3,330 479 30 414 194
2011 Estimated using AADF from previous year on this link 28,589 23,957 3,359 534 49 503 236
2010 Manual count 28,657 24,101 3,284 527 56 511 234
2009 Manual count 29,404 24,876 3,052 743 75 408 325
2008 Estimated using AADF from previous year on this link 34,667 29,495 3,642 816 50 422 292
2007 Estimated using AADF from previous year on this link 34,882 29,703 3,635 822 49 435 287
2006 Manual count 34,734 29,912 3,280 804 48 433 305
2005 Estimated using AADF from previous year on this link 14,055 11,748 1,466 544 35 154 143
2004 Estimated using AADF from previous year on this link 14,078 11,830 1,401 537 33 160 150
2003 Manual count 13,723 11,633 1,259 492 33 158 181
2002 Estimated using AADF from previous year on this link 15,175 12,876 1,500 388 39 258 153
2001 Estimated using AADF from previous year on this link 14,770 12,513 1,488 367 37 253 149
2000 Estimated using AADF from previous year on this link 14,282 12,137 1,409 362 41 229 145

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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 6430 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 6430 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. 240

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