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Road traffic statistics

78242

Details

AADF latest year 2024
Region South East
Local authority West Sussex
Road name A27
Road type Major
Start junction road Hollyacres
End junction road A24
Link length 1.90km (1.18 miles)
Easting & Northing 512100,105780
Latitude & longitude 50.84069,-0.40924

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 Automatic counter 25,957 19,970 4,816 937 32 179 56
2023 Manual count 27,781 21,458 5,056 1,016 34 192 60
2022 Automatic counter 26,417 19,190 5,793 1,100 30 276 59
2021 Automatic counter 25,427 18,281 5,694 1,153 30 245 54
2020 Automatic counter 18,910 13,691 4,087 893 34 193 46
2019 Manual count 22,776 17,263 4,282 923 30 242 66
2018 Estimated using AADF from previous year on this link 28,503 22,255 4,905 910 55 350 83
2017 Estimated using AADF from previous year on this link 28,330 22,330 4,684 896 54 334 86
2016 Estimated using AADF from previous year on this link 28,014 22,340 4,397 862 58 331 84
2015 Manual count 26,991 21,691 4,071 828 49 319 82
2014 Estimated using AADF from previous year on this link 25,890 19,670 4,663 1,111 16 269 177
2013 Estimated using AADF from previous year on this link 25,426 19,876 4,095 1,036 17 253 167
2012 Estimated using AADF from previous year on this link 25,507 19,989 4,049 1,039 17 253 177
2011 Manual count 25,873 20,074 4,216 1,138 18 280 165
2010 Estimated using AADF from previous year on this link 27,336 21,563 4,468 1,041 21 175 89
2009 Estimated using AADF from previous year on this link 27,836 22,026 4,446 1,089 21 190 85
2008 Estimated using AADF from previous year on this link 27,900 22,384 4,105 1,123 21 201 87
2007 Manual count 28,201 22,818 3,920 1,161 19 215 87
2006 Estimated using AADF from previous year on this link 27,006 22,139 3,423 1,146 28 191 107
2005 Estimated using AADF from previous year on this link 26,852 22,073 3,369 1,117 19 184 109
2004 Estimated using AADF from previous year on this link 27,364 22,639 3,284 1,148 22 182 111
2003 Manual count 27,362 22,593 3,314 1,130 27 206 119
2002 Manual count 28,183 23,099 3,426 1,309 37 236 113
2001 Estimated using AADF from previous year on this link 28,269 23,146 3,420 1,358 36 234 111
2000 Estimated using AADF from previous year on this link 27,863 22,692 3,434 1,402 38 226 109

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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 78242 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 78242 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. 168

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