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Road traffic statistics

38631

Details

AADF latest year 2021
Region London
Local authority Westminster
Road name A4
Road type Major
Start junction road A301
End junction road A301/A4200
Link length 0.30km (0.19 miles)
Easting & Northing 530668,181000
Latitude & longitude 51.51283,-0.11834

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
2021 Estimated using AADF from previous year on this link 13,844 7,619 2,646 575 1,138 984 2,020
2020 Manual count 12,951 7,062 2,482 542 1,275 863 2,003
2019 Estimated using AADF from previous year on this link 13,008 7,415 1,716 386 1,733 1,270 2,221
2018 Estimated using AADF from previous year on this link 12,939 7,396 1,717 388 1,850 1,204 2,234
2017 Estimated using AADF from previous year on this link 13,002 7,402 1,682 400 1,873 1,195 2,322
2016 Estimated using AADF from previous year on this link 13,088 7,405 1,696 415 1,917 1,153 2,419
2015 Estimated using AADF from previous year on this link 12,967 7,561 1,645 399 1,854 1,075 2,287
2014 Estimated using AADF from previous year on this link 12,758 7,149 1,713 423 1,965 1,034 2,440
2013 Estimated using AADF from previous year on this link 12,510 6,913 1,644 420 1,958 1,015 2,518
2012 Manual count 12,797 7,184 1,576 388 2,372 1,059 2,590
2011 Estimated using AADF from previous year on this link 24,594 16,061 2,253 811 2,965 1,418 4,051
2010 Estimated using AADF from previous year on this link 24,632 16,191 2,271 800 2,989 1,429 3,941
2009 Estimated using AADF from previous year on this link 25,050 16,692 2,358 781 2,747 1,522 3,697
2008 Manual count 25,755 17,226 2,519 838 2,704 1,631 3,541
2007 Estimated using AADF from previous year on this link 29,985 18,097 4,346 1,075 3,969 2,974 3,493
2006 Estimated using AADF from previous year on this link 32,340 19,887 4,517 1,000 4,708 3,583 3,353
2005 Manual count 30,175 19,325 3,576 1,092 4,128 3,193 2,989
2004 Estimated using AADF from previous year on this link 29,774 21,968 2,505 733 1,625 1,479 3,089
2003 Manual count 27,317 20,191 2,350 773 1,139 1,140 2,863
2002 Estimated using AADF from previous year on this link 22,780 14,030 2,708 701 2,961 3,057 2,284
2001 Estimated using AADF from previous year on this link 24,625 15,729 2,992 679 3,104 3,249 1,976
2000 Estimated using AADF from previous year on this link 25,422 16,822 3,001 730 2,996 2,883 1,986

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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 38631 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 38631 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. 22
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. 22
Raw counts Vehicle counts recorded at this count point. 60

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