Traffic Region: Wales
Traffic Authority: Pembrokeshire
Road Number: A478
Road Type: Class A Principal road in Rural area
OS Grid: SN114048
Location: East Williamston
Census Point ID: 40591
Census Point Coverage: A478 between A4218 Serpentine Rd and A477(T)
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| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pedal Cycles | 18 | 16 | 5 | 4 | 14 | 14 | 14 | 14 | 14 | 16 | 5 | 5 | 5 | 5 | 4 | 4 | 15 | 15 |
| Motorcycles and Mopeds | 74 | 76 | 36 | 39 | 37 | 33 | 33 | 33 | 31 | 33 | 87 | 92 | 85 | 88 | 96 | 97 | 30 | 30 |
| Cars | 8,195 | 8,548 | 6,343 | 6,425 | 6,527 | 6,566 | 6,566 | 6,722 | 6,588 | 6,727 | 6,629 | 6,682 | 6,629 | 6,614 | 6,597 | 6,551 | 6,540 | 6,532 |
| Buses and Coaches | 112 | 121 | 103 | 93 | 95 | 96 | 106 | 102 | 106 | 127 | 84 | 77 | 80 | 78 | 81 | 82 | 66 | 64 |
| Light Goods Vehicles | 851 | 861 | 666 | 748 | 619 | 641 | 688 | 742 | 757 | 761 | 1,047 | 1,136 | 1,175 | 1,216 | 1,266 | 1,378 | 1,216 | 1,286 |
| Two-axle Rigid HGVs | 172 | 174 | 182 | 184 | 219 | 217 | 212 | 228 | 226 | 213 | 96 | 96 | 95 | 92 | 90 | 94 | 160 | 165 |
| Three-axle Rigid HGVs | 36 | 43 | 11 | 12 | 19 | 19 | 18 | 19 | 22 | 22 | 16 | 17 | 18 | 19 | 20 | 23 | 21 | 21 |
| Four-axle Rigid HGVs | 11 | 11 | 10 | 11 | 5 | 6 | 6 | 7 | 7 | 7 | 9 | 10 | 11 | 12 | 13 | 13 | 26 | 27 |
| Three-axle Articulated HGVs | 5 | 5 | 7 | 7 | 9 | 9 | 8 | 7 | 6 | 6 | 12 | 10 | 7 | 6 | 6 | 7 | 15 | 15 |
| Five-axle Articulated HGVs | 11 | 9 | 10 | 9 | 4 | 4 | 4 | 4 | 4 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 |
| Six-axle Articulated HGVs | 3 | 3 | 2 | 2 | 6 | 7 | 8 | 8 | 8 | 8 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 |
| All HGVs | 238 | 245 | 222 | 225 | 262 | 262 | 256 | 273 | 273 | 260 | 137 | 137 | 135 | 132 | 132 | 140 | 228 | 235 |
| All motor vehicles | 9,470 | 9,851 | 7,370 | 7,530 | 7,540 | 7,598 | 7,649 | 7,872 | 7,755 | 7,908 | 7,984 | 8,124 | 8,104 | 8,128 | 8,173 | 8,249 | 8,080 | 8,147 |
| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pedal Cycles | 11 | 10 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 9 | 11 |
| Motorcycles and Mopeds | 38 | 39 | 16 | 17 | 17 | 15 | 15 | 15 | 14 | 15 | 34 | 36 | 33 | 34 | 38 | 38 | 9 | 16 |
| Cars | 3,972 | 4,143 | 2,961 | 2,999 | 3,332 | 3,352 | 3,352 | 3,432 | 3,363 | 3,434 | 3,381 | 3,408 | 3,381 | 3,373 | 3,365 | 3,341 | 3,160 | 3,300 |
| Buses and Coaches | 62 | 67 | 59 | 53 | 49 | 50 | 55 | 53 | 55 | 66 | 45 | 41 | 42 | 42 | 43 | 44 | 34 | 32 |
| Light Goods Vehicles | 396 | 401 | 332 | 373 | 330 | 342 | 367 | 396 | 404 | 406 | 496 | 538 | 556 | 576 | 599 | 653 | 582 | 627 |
| Two-axle Rigid HGVs | 80 | 81 | 88 | 89 | 98 | 97 | 95 | 102 | 101 | 95 | 48 | 48 | 47 | 46 | 45 | 47 | 71 | 75 |
| Three-axle Rigid HGVs | 14 | 17 | 3 | 3 | 6 | 6 | 6 | 6 | 7 | 7 | 6 | 6 | 6 | 7 | 7 | 8 | 7 | 8 |
| Four-axle Rigid HGVs | 5 | 5 | 4 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 4 | 4 | 5 | 5 | 5 | 14 | 15 |
| Three-axle Articulated HGVs | 4 | 4 | 6 | 6 | 6 | 6 | 5 | 5 | 4 | 4 | 6 | 5 | 4 | 3 | 3 | 3 | 5 | 5 |
| Five-axle Articulated HGVs | 6 | 5 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| Six-axle Articulated HGVs | 3 | 3 | 1 | 1 | 4 | 5 | 5 | 5 | 5 | 5 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| All HGVs | 112 | 115 | 105 | 106 | 117 | 117 | 114 | 121 | 120 | 114 | 66 | 65 | 64 | 62 | 62 | 66 | 100 | 105 |
| All motor vehicles | 4,580 | 4,765 | 3,473 | 3,548 | 3,845 | 3,876 | 3,903 | 4,017 | 3,956 | 4,035 | 4,022 | 4,088 | 4,077 | 4,087 | 4,107 | 4,141 | 3,885 | 4,081 |
| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pedal Cycles | 7 | 6 | 1 | 1 | 11 | 11 | 11 | 11 | 11 | 13 | 2 | 2 | 2 | 2 | 1 | 1 | 3 | 4 |
| Motorcycles and Mopeds | 36 | 37 | 20 | 22 | 20 | 18 | 18 | 18 | 17 | 18 | 53 | 56 | 52 | 54 | 59 | 59 | 8 | 14 |
| Cars | 4,223 | 4,405 | 3,382 | 3,426 | 3,195 | 3,214 | 3,214 | 3,290 | 3,225 | 3,293 | 3,248 | 3,274 | 3,248 | 3,241 | 3,232 | 3,210 | 3,094 | 3,232 |
| Buses and Coaches | 50 | 54 | 44 | 40 | 46 | 46 | 51 | 49 | 51 | 61 | 39 | 36 | 37 | 37 | 38 | 39 | 33 | 31 |
| Light Goods Vehicles | 455 | 460 | 334 | 375 | 289 | 299 | 321 | 346 | 353 | 355 | 551 | 598 | 618 | 640 | 666 | 725 | 612 | 659 |
| Two-axle Rigid HGVs | 92 | 93 | 94 | 95 | 121 | 120 | 117 | 126 | 125 | 118 | 48 | 48 | 47 | 46 | 45 | 47 | 86 | 90 |
| Three-axle Rigid HGVs | 22 | 26 | 8 | 9 | 13 | 13 | 12 | 13 | 15 | 15 | 10 | 11 | 12 | 12 | 13 | 15 | 13 | 13 |
| Four-axle Rigid HGVs | 6 | 6 | 6 | 7 | 4 | 5 | 5 | 6 | 6 | 6 | 5 | 6 | 7 | 7 | 8 | 8 | 12 | 13 |
| Three-axle Articulated HGVs | 1 | 1 | 1 | 1 | 3 | 3 | 3 | 2 | 2 | 2 | 6 | 5 | 4 | 3 | 3 | 3 | 10 | 10 |
| Five-axle Articulated HGVs | 5 | 4 | 7 | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Six-axle Articulated HGVs | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 |
| All HGVs | 126 | 130 | 117 | 119 | 145 | 145 | 142 | 152 | 153 | 146 | 71 | 72 | 71 | 70 | 70 | 75 | 123 | 130 |
| All motor vehicles | 4,890 | 5,086 | 3,897 | 3,982 | 3,695 | 3,722 | 3,746 | 3,855 | 3,799 | 3,873 | 3,962 | 4,036 | 4,027 | 4,041 | 4,066 | 4,108 | 3,870 | 4,066 |
Figures are daily averages calculated from all traffic counts over the course of the year.
Values are rounded to the nearest whole number.
A value of zero for any entry means that there were either no recorded vehicles of that type or too few to register after rounding.
A blank value means that there were no counts made in that year.
Click or tap on the column headings to see a pie chart of the data.