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Road traffic statistics

18684

Details

AADF latest year 2024
Region South East
Local authority West Berkshire
Road name A4
Road type Major
Start junction road A340
End junction road A340
Link length 4.40km (2.73 miles)
Easting & Northing 460500,167730
Latitude & longitude 51.40538,-1.13159

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 22,419 17,119 3,792 1,326 19 91 91
2023 Manual count 22,157 16,916 3,726 1,333 20 92 91
2022 Estimated using AADF from previous year on this link 23,616 16,887 5,335 1,319 36 33 42
2021 Estimated using AADF from previous year on this link 21,873 15,733 4,790 1,280 36 30 39
2020 Manual count 19,823 14,387 4,182 1,191 49 29 33
2019 Estimated using AADF from previous year on this link 24,630 18,799 4,204 1,384 42 172 71
2018 Estimated using AADF from previous year on this link 24,584 18,758 4,218 1,377 35 160 72
2017 Manual count 24,467 18,848 4,028 1,352 35 164 75
2016 Estimated using AADF from previous year on this link 24,535 18,236 4,239 1,602 55 360 98
2015 Estimated using AADF from previous year on this link 23,946 18,013 3,925 1,549 56 360 99
2014 Estimated using AADF from previous year on this link 22,912 17,485 3,531 1,446 56 348 101
2013 Manual count 22,271 17,091 3,290 1,462 70 338 90
2012 Estimated using AADF from previous year on this link 24,086 18,291 3,674 1,667 59 312 141
2011 Manual count 24,055 18,424 3,528 1,643 63 321 139
2010 Manual count 23,928 18,177 3,651 1,697 46 274 129
2009 Manual count 25,260 19,683 3,567 1,625 36 240 145
2008 Manual count 21,666 16,431 3,179 1,667 25 303 86
2007 Manual count 25,951 20,235 3,440 1,919 5 200 157
2006 Manual count 25,675 20,088 3,369 1,828 24 272 118
2005 Manual count 23,922 18,796 2,847 1,914 21 229 136
2004 Manual count 23,644 18,356 3,071 1,947 19 155 115
2003 Manual count 25,039 19,567 3,068 1,858 23 388 158
2002 Manual count 24,045 18,651 3,334 1,703 17 254 103
2001 Manual count 24,471 19,616 2,406 1,991 43 349 109
2000 Manual count 23,062 17,882 3,069 1,613 31 310 188

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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 18684 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 18684 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. 384

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