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Road traffic statistics

78131

Details

AADF latest year 2024
Region South East
Local authority Buckinghamshire
Road name A40
Road type Major
Start junction road Bulstrode Way
End junction road B416
Link length 0.70km (0.43 miles)
Easting & Northing 499750,188430
Latitude & longitude 51.58591,-0.56162

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 from nearby links 20,734 17,478 2,358 558 17 213 127
2023 Estimated from nearby links 18,728 15,237 2,599 573 26 143 176
2022 Estimated from nearby links 18,336 14,869 2,548 586 28 153 178
2021 Estimated from nearby links 17,017 13,854 2,288 570 28 139 167
2020 Estimated from nearby links 15,467 12,669 1,998 526 38 134 141
2019 Estimated from nearby links 19,803 16,746 2,334 522 31 108 93
2018 Estimated from nearby links 19,765 16,710 2,343 517 32 101 94
2017 Estimated from nearby links 19,731 16,789 2,236 504 26 103 100
2016 Estimated from nearby links 19,620 16,809 2,113 490 26 106 102
2015 Estimated from nearby links 21,188 17,435 2,783 653 20 183 132
2014 Estimated from nearby links 20,359 16,925 2,504 618 20 177 135
2013 Estimated from nearby links 19,792 16,544 2,333 624 26 172 120
2012 Estimated from nearby links 19,813 16,744 2,197 593 26 163 116
2011 Estimated from nearby links 19,835 16,865 2,110 577 27 168 115
2010 Estimated from nearby links 18,543 15,412 2,196 680 36 130 125
2009 Estimated from nearby links 18,876 15,790 2,140 683 36 146 117
2008 Estimated from nearby links 19,040 15,999 2,072 718 32 139 112
2007 Estimated from nearby links 20,602 17,227 2,063 1,087 30 108 117
2006 Estimated from nearby links 18,271 14,778 2,079 1,186 14 114 114
2005 Estimated from nearby links 19,381 16,432 1,547 1,008 18 255 139
2004 Estimated from nearby links 17,930 14,846 1,713 1,089 15 140 142
2003 Estimated from nearby links 18,665 15,983 1,528 869 21 177 108
2002 Estimated from nearby links 20,054 17,075 2,217 547 14 111 104
2001 Estimated from nearby links 19,509 16,595 2,199 505 13 109 101
2000 Estimated from nearby links 20,333 17,098 1,790 1,144 40 172 129

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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 78131 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 78131 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. 25
Raw counts Vehicle counts recorded at this count point. 0

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