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Road traffic statistics

99727

Details

AADF latest year 2017
Region South East
Local authority West Sussex
Road name A23
Road type Major
Start junction road B2118
End junction road A2300
Link length 1.30km (0.81 miles)
Easting & Northing 526950,119500
Latitude & longitude 50.96094,-0.19367

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
2017 Manual count 63,032 49,153 10,543 2,694 15 416 225
2016 Estimated using AADF from previous year on this link 61,688 47,407 11,146 2,538 12 377 221
2015 Manual count 59,364 46,029 10,321 2,435 10 362 217
2014 Manual count 58,646 45,379 9,681 2,761 31 583 242
2013 Manual count 56,662 44,852 8,593 2,637 4 380 200
2012 Manual count 61,949 49,982 8,347 2,903 18 406 312
2011 Manual count 61,770 49,595 8,579 2,834 13 407 355
2010 Manual count 59,237 47,493 8,715 2,520 8 248 261
2009 Manual count 61,190 49,815 8,011 2,586 8 548 230
2008 Manual count 59,055 47,797 7,731 2,918 14 390 219
2007 Estimated using AADF from previous year on this link 64,058 51,522 8,838 3,002 2 494 202
2006 Estimated using AADF from previous year on this link 63,515 51,885 7,977 2,948 2 491 214
2005 Estimated using AADF from previous year on this link 62,213 51,018 7,612 2,908 2 453 222
2004 Manual count 62,291 51,377 7,277 2,933 2 472 232
2003 Estimated using AADF from previous year on this link 61,182 51,204 6,306 2,856 1 556 260
2002 Estimated using AADF from previous year on this link 59,331 50,102 5,697 2,757 1 513 262
2001 Manual count 57,800 48,690 5,652 2,701 1 503 254
2000 Estimated using AADF from previous year on this link 52,160 43,696 2,490 5,339 0 319 316

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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 99727 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 99727 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. 18
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. 36
Raw counts Vehicle counts recorded at this count point. 264

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