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Road traffic statistics

17972

Details

AADF latest year 2017
Region South East
Local authority Portsmouth
Road name A27
Road type Major
Start junction road M27/A3
End junction road M27
Link length 1.60km (0.99 miles)
Easting & Northing 465000,105200
Latitude & longitude 50.84267,-1.07816

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 28,484 23,143 4,131 749 695 413 48
2016 Estimated using AADF from previous year on this link 27,351 21,192 4,808 829 292 462 60
2015 Estimated using AADF from previous year on this link 26,635 20,866 4,401 829 314 473 65
2014 Estimated using AADF from previous year on this link 26,801 21,256 4,184 830 338 465 66
2013 Estimated using AADF from previous year on this link 26,426 21,479 3,675 774 348 437 62
2012 Manual count 26,519 21,601 3,633 782 352 437 66
2011 Estimated using AADF from previous year on this link 27,092 22,441 3,372 714 670 475 90
2010 Manual count 27,075 22,554 3,271 712 607 448 90
2009 Estimated using AADF from previous year on this link 28,447 23,246 3,924 814 600 356 107
2008 Manual count 28,573 23,624 3,623 839 600 377 110
2007 Estimated using AADF from previous year on this link 25,216 20,617 3,288 785 165 438 88
2006 Manual count 25,961 21,634 3,014 790 265 433 90
2005 Estimated using AADF from previous year on this link 24,912 20,461 3,085 772 358 533 61
2004 Manual count 25,389 20,985 3,007 807 423 528 62
2003 Estimated using AADF from previous year on this link 26,199 21,953 2,825 815 238 561 45
2002 Manual count 26,162 22,265 2,591 756 266 500 50
2001 Estimated using AADF from previous year on this link 26,037 21,848 2,881 709 198 495 104
2000 Estimated using AADF from previous year on this link 25,605 21,420 2,893 713 207 477 102

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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 17972 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 17972 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. 168

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