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A420, Chippenham, Wiltshire

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Traffic Region: South West

Traffic Authority: Wiltshire

Road Number: A420

Road Type: Class A Principal road in Urban area

OS Grid: ST917734

Location: Chippenham

Census Point ID: 8238

Census Point Coverage: A420 between A4 and A420 Split

Traffic by Year

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Traffic statistics by year: All traffic

200020012002200320042005200620072008200920102011201220132014201520162017
Pedal Cycles565456506051815057575763414039363445
Motorcycles and Mopeds1601681742471341119792899994798910095848298
Cars16,07315,57415,82315,23816,32315,57115,27615,03114,70115,02414,93414,89015,69215,55315,97516,29116,54615,194
Buses and Coaches160168170166109102958675758580828682898249
Light Goods Vehicles1,5131,5241,6331,7731,7671,8841,9122,0142,0562,0872,2292,4881,7691,8381,9662,0612,2522,156
Two-axle Rigid HGVs351335316306285309297277277252268272196197202192194209
Three-axle Rigid HGVs5258606273787367767677848188981009981
Four-axle Rigid HGVs353434364045474750484248333741384374
Three-axle Articulated HGVs2117151531262016131214121298101026
Five-axle Articulated HGVs393127244234262321181717201916151347
Six-axle Articulated HGVs161618202422222120202022545551504943
All HGVs514491470463495514485451457426438455395405415405409479
All motor vehicles18,42017,92518,27017,88718,82818,18217,86517,67417,37817,71117,78017,99218,02717,98218,53418,93019,37117,976

Traffic statistics by year: Northbound

200020012002200320042005200620072008200920102011201220132014201520162017
Pedal Cycles313031284034543338383842232322211927
Motorcycles and Mopeds1001051091558066585553595647525856494759
Cars9,5359,2399,3879,0409,6019,1598,9858,8418,6478,8378,7848,7589,3889,3059,5579,7469,9798,755
Buses and Coaches798384824643403632323634414341444427
Light Goods Vehicles8628689301,0101,0191,0861,1021,1611,1851,2031,2851,4341,0531,0951,1711,2281,3181,209
Two-axle Rigid HGVs188179169164142154148138138126134136107108111105109113
Three-axle Rigid HGVs242728293335333034343437414550515044
Four-axle Rigid HGVs212020211921222223221922141618171835
Three-axle Articulated HGVs765514129766766545514
Five-axle Articulated HGVs201614121815111098888866628
Six-axle Articulated HGVs8891054444444252524232612
All HGVs268256245241231241227211214200206213202207212207214245
All motor vehicles10,84410,55110,75510,52810,97710,59510,41210,30410,13110,33110,36710,48610,73610,70711,03711,27411,60210,296

Traffic statistics by year: Southbound

200020012002200320042005200620072008200920102011201220132014201520162017
Pedal Cycles252425222017271719191921181817161518
Motorcycles and Mopeds606365925445393736403832374139353338
Cars6,5386,3356,4366,1986,7226,4126,2916,1906,0546,1876,1506,1326,3046,2486,4186,5456,7016,439
Buses and Coaches818586846359555043434946414341444422
Light Goods Vehicles6516567037637487988108538718849441,054715743795834895947
Two-axle Rigid HGVs163156147142143155149139139126134136888991868996
Three-axle Rigid HGVs283132334043403742424347404348494737
Four-axle Rigid HGVs141414152124252527262326192123222439
Three-axle Articulated HGVs14111010171411976766545511
Five-axle Articulated HGVs191513122419151312109912121091020
Six-axle Articulated HGVs889101918181716161618293028273131
All HGVs246235225222264273258240243226232242194199203198206234
All motor vehicles7,5767,3747,5157,3597,8517,5877,4537,3707,2477,3807,4137,5067,2917,2757,4977,6567,8807,680

Notes

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.

All public sector data is licensed under the Open Government Licence v2.0.

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