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Road traffic statistics

99728

Details

AADF latest year 2017
Region South East
Local authority West Sussex
Road name A23
Road type Major
Start junction road A2300
End junction road A272
Link length 1.90km (1.18 miles)
Easting & Northing 526750,121000
Latitude & longitude 50.97447,-0.19599

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 65,187 50,926 10,802 2,852 0 401 205
2016 Estimated using AADF from previous year on this link 61,816 48,237 10,134 2,701 1 527 217
2015 Manual count 59,533 46,836 9,384 2,594 1 507 212
2014 Manual count 54,881 42,340 9,396 2,645 0 337 162
2013 Manual count 57,706 46,398 8,366 2,490 0 275 177
2012 Manual count 58,943 47,830 8,030 2,555 3 369 159
2011 Manual count 59,304 47,484 8,883 2,396 2 333 208
2010 Manual count 56,314 45,011 8,308 2,529 2 346 120
2009 Manual count 59,593 48,362 8,001 2,720 2 377 133
2008 Manual count 58,157 46,623 8,222 2,784 1 377 151
2007 Estimated using AADF from previous year on this link 57,624 46,612 8,050 2,478 0 390 94
2006 Manual count 57,148 46,940 7,266 2,454 0 388 100
2005 Estimated using AADF from previous year on this link 67,031 56,475 6,658 3,229 0 485 184
2004 Manual count 67,194 56,873 6,365 3,259 0 506 191
2003 Estimated using AADF from previous year on this link 63,345 53,293 6,411 2,929 0 499 213
2002 Manual count 61,443 52,146 5,791 2,831 0 460 215
2001 Manual count 63,313 53,779 6,032 2,862 2 488 152
2000 Manual count 66,888 57,365 5,735 3,115 2 440 233

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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 99728 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 99728 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. 336

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