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Road traffic statistics

38325

Details

AADF latest year 2020
Region South East
Local authority Buckinghamshire
Road name A40
Road type Major
Start junction road A40 London Rd
End junction road A404 Crendon St
Link length 0.30km (0.19 miles)
Easting & Northing 486900,192875
Latitude & longitude 51.62799,-0.74594

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
2020 Estimated using AADF from previous year on this link 10,127 8,438 1,416 134 47 31 108
2019 Estimated using AADF from previous year on this link 13,079 11,109 1,604 153 41 42 172
2018 Estimated using AADF from previous year on this link 12,957 10,971 1,618 153 37 45 170
2017 Estimated using AADF from previous year on this link 13,067 11,093 1,589 153 34 45 187
2016 Estimated using AADF from previous year on this link 13,081 11,176 1,509 152 35 45 200
2015 Estimated using AADF from previous year on this link 12,796 11,004 1,381 148 38 46 216
2014 Estimated using AADF from previous year on this link 12,512 10,790 1,317 152 41 52 201
2013 Manual count 12,148 10,505 1,232 148 42 54 209
2012 Estimated using AADF from previous year on this link 12,656 10,932 1,259 179 100 61 225
2011 Estimated using AADF from previous year on this link 12,798 11,105 1,244 178 106 64 207
2010 Estimated using AADF from previous year on this link 12,723 11,138 1,115 175 96 76 219
2009 Estimated using AADF from previous year on this link 12,688 11,205 1,044 166 95 80 193
2008 Estimated using AADF from previous year on this link 12,440 10,964 1,029 180 95 72 195
2007 Estimated using AADF from previous year on this link 12,699 11,211 1,008 180 85 76 224
2006 Estimated using AADF from previous year on this link 12,871 11,393 957 195 136 79 247
2005 Manual count 13,120 11,614 943 206 87 91 266
2004 Estimated using AADF from previous year on this link 13,531 11,307 1,551 345 34 135 193
2003 Estimated using AADF from previous year on this link 13,296 11,162 1,409 285 42 205 235
2002 Estimated using AADF from previous year on this link 13,566 11,591 1,297 292 47 144 242
2001 Estimated using AADF from previous year on this link 13,303 11,408 1,210 306 45 139 240
2000 Manual count 13,657 11,773 1,202 320 47 133 229

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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 38325 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 38325 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. 21
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. 21
Raw counts Vehicle counts recorded at this count point. 36

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