Traffic Region: South East
Traffic Authority: Milton Keynes
Road Number: A421
Road Type: Class A Principal road in Rural area
OS Grid: SP840334
Location: Shenley Brook End
Census Point ID: 78261
Census Point Coverage: A421 between B4034 and Rhoscolyn Drive
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| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pedal Cycles | 41 | 6 | 6 | 4 | 1 | 10 | 15 | 6 | 30 | 29 | 38 | 42 | 4 | 4 | 4 | 4 | 3 | 51 |
| Motorcycles and Mopeds | 306 | 188 | 190 | 197 | 79 | 133 | 105 | 102 | 155 | 146 | 78 | 83 | 170 | 170 | 180 | 184 | 179 | 125 |
| Cars | 23,062 | 19,001 | 18,963 | 21,283 | 22,497 | 21,942 | 23,690 | 23,645 | 24,342 | 23,953 | 20,309 | 20,207 | 24,396 | 24,257 | 24,006 | 23,565 | 23,933 | 27,372 |
| Buses and Coaches | 103 | 65 | 66 | 70 | 78 | 78 | 83 | 110 | 50 | 48 | 72 | 72 | 61 | 58 | 61 | 61 | 56 | 50 |
| Light Goods Vehicles | 2,302 | 2,257 | 2,261 | 1,864 | 2,277 | 2,277 | 2,681 | 2,430 | 2,668 | 2,890 | 2,684 | 2,767 | 2,846 | 2,879 | 3,278 | 3,448 | 3,766 | 3,020 |
| Two-axle Rigid HGVs | 473 | 441 | 425 | 576 | 749 | 598 | 444 | 552 | 374 | 360 | 533 | 531 | 345 | 344 | 364 | 354 | 359 | 237 |
| Three-axle Rigid HGVs | 79 | 77 | 79 | 55 | 74 | 77 | 73 | 67 | 62 | 66 | 71 | 77 | 60 | 64 | 74 | 77 | 77 | 37 |
| Four-axle Rigid HGVs | 91 | 70 | 73 | 52 | 84 | 94 | 67 | 92 | 92 | 92 | 38 | 43 | 51 | 58 | 65 | 63 | 72 | 35 |
| Three-axle Articulated HGVs | 90 | 70 | 64 | 86 | 109 | 86 | 86 | 86 | 102 | 96 | 70 | 53 | 136 | 99 | 106 | 129 | 134 | 82 |
| Five-axle Articulated HGVs | 198 | 165 | 143 | 252 | 241 | 291 | 250 | 228 | 252 | 222 | 254 | 251 | 318 | 298 | 291 | 287 | 254 | 231 |
| Six-axle Articulated HGVs | 176 | 96 | 105 | 151 | 124 | 141 | 150 | 176 | 145 | 143 | 142 | 150 | 195 | 195 | 220 | 218 | 214 | 171 |
| All HGVs | 1,107 | 919 | 889 | 1,172 | 1,381 | 1,287 | 1,070 | 1,201 | 1,027 | 979 | 1,108 | 1,105 | 1,105 | 1,059 | 1,120 | 1,128 | 1,110 | 793 |
| All motor vehicles | 26,880 | 22,430 | 22,369 | 24,586 | 26,312 | 25,717 | 27,629 | 27,488 | 28,242 | 28,016 | 24,251 | 24,234 | 28,578 | 28,423 | 28,646 | 28,386 | 29,045 | 31,360 |
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.