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Road traffic statistics

78215

Details

AADF latest year 2020
Region East of England
Local authority Hertfordshire
Road name A4147
Road type Major
Start junction road Aycliffe Drive
End junction road B487
Link length 0.60km (0.37 miles)
Easting & Northing 506800,209070
Latitude & longitude 51.77013,-0.45359

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
2020 Estimated from nearby links 16,485 13,593 2,567 211 59 105 10
2019 Estimated from nearby links 23,123 19,112 3,231 594 105 141 45
2018 Estimated from nearby links 23,081 19,072 3,244 588 107 132 45
2017 Estimated from nearby links 23,013 19,162 3,095 574 89 135 48
2016 Estimated from nearby links 22,855 19,185 2,925 558 89 138 49
2015 Estimated from nearby links 25,097 21,251 2,865 593 44 261 127
2014 Estimated from nearby links 24,147 20,629 2,577 559 44 252 129
2013 Estimated from nearby links 23,490 20,165 2,401 564 55 245 114
2012 Estimated from nearby links 23,556 20,409 2,262 543 55 232 111
2011 Estimated from nearby links 23,613 20,557 2,172 536 59 238 110
2010 Estimated from nearby links 20,105 17,231 2,161 452 76 189 72
2009 Estimated from nearby links 21,528 18,673 2,232 360 68 178 85
2008 Estimated from nearby links 22,534 19,126 2,483 599 19 251 75
2007 Estimated from nearby links 22,678 19,261 2,479 606 19 258 74
2006 Estimated from nearby links 22,556 19,396 2,237 588 19 257 78
2005 Estimated from nearby links 22,095 19,072 2,134 571 20 237 81
2004 Estimated from nearby links 22,150 19,207 2,041 570 19 247 85
2003 Estimated from nearby links 21,597 18,886 1,833 532 19 243 103
2002 Estimated from nearby links 21,750 18,884 2,131 360 54 260 115
2001 Estimated from nearby links 21,180 18,352 2,114 348 51 255 111
2000 Estimated from nearby links 20,490 17,799 2,002 350 58 231 108

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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 78215 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 78215 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. 21
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. 21
Raw counts Vehicle counts recorded at this count point. 0

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