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A1, Welwyn, Hertfordshire

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Traffic Region: East of England

Traffic Authority: Hertfordshire

Road Number: A1

Road Type: M or Class A Trunk Motorway

OS Grid: TL235160

Location: Welwyn

Census Point ID: 46065

Census Point Coverage: A1 between A1000 Hertford Road and A1000/B197

Traffic by Year

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Traffic statistics by year: All traffic

200020012002200320042005200620072008200920102011201220132014201520162017
Pedal Cycles000000000000000000
Motorcycles and Mopeds393402456491432428498526506482456479457408436421426512
Cars54,79656,44057,28758,20357,79657,10357,27452,92152,49852,66851,56251,45950,72462,61562,92264,92365,45381,770
Buses and Coaches303313328387212236224234281209224235253169172138136165
Light Goods Vehicles7,7377,9468,3128,6868,9649,95010,68611,17811,9618,6698,9739,2249,95310,15911,12111,20611,90113,152
Two-axle Rigid HGVs1,8711,9271,9961,9122,0672,1072,1802,0902,0821,5271,6161,6161,6311,5661,4961,8431,9381,929
Three-axle Rigid HGVs224271304307351349352337378251253273297259268272266279
Four-axle Rigid HGVs257270303317374403440465492241210237270230234344401585
Three-axle Articulated HGVs545518487456456415371332303343389294235171173228234270
Five-axle Articulated HGVs1,2641,1761,0589208597696796716171,1091,0189841,0075475086366021,749
Six-axle Articulated HGVs8491,0311,1701,2631,4601,5831,6931,8071,8459239029331,0221,6551,7731,7041,772790
All HGVs5,0105,1935,3185,1755,5675,6265,7155,7025,7174,3944,3884,3374,4634,4284,4525,0275,2125,602
All motor vehicles68,23970,29471,70172,94272,97173,34374,39770,56170,96366,42265,60365,73465,85077,77979,10381,71583,128101,200

Traffic statistics by year: Northbound

200020012002200320042005200620072008200920102011201220132014201520162017
Pedal Cycles000000000000000000
Motorcycles and Mopeds166170193208183181211223214209198208199199213201199286
Cars24,63725,37625,75726,16925,98625,67425,75123,79423,60422,55722,08322,03921,72428,90229,04329,19329,40846,029
Buses and Coaches122126132156859590941139810511011874756666110
Light Goods Vehicles3,6173,7153,8864,0614,1914,6524,9965,2265,5923,9304,0684,1824,5135,0625,5415,6375,9257,759
Two-axle Rigid HGVs9961,0261,0631,0181,1011,1221,1611,1131,1097738188188267687349941,0281,267
Three-axle Rigid HGVs8198110111127126127122137126127137149124128144139209
Four-axle Rigid HGVs133140157164194209228241255119104117133107109166180324
Three-axle Articulated HGVs176167157147147134120107982172461861497879131109168
Five-axle Articulated HGVs731680612532497445393388357549504487498275255334312915
Six-axle Articulated HGVs401487553597690748800854872445435450493836896933973498
All HGVs2,5182,5982,6522,5692,7562,7842,8292,8252,8282,2292,2342,1952,2482,1882,2012,7012,7423,382
All motor vehicles31,06031,98532,62033,16333,20133,38633,87732,16232,35129,02328,68828,73428,80236,42437,07337,79838,34057,564

Traffic statistics by year: Southbound

200020012002200320042005200620072008200920102011201220132014201520162017
Pedal Cycles000000000000000000
Motorcycles and Mopeds227232263283249247287303292273258271259208223219217226
Cars30,15931,06431,53032,03431,81031,42931,52329,12728,89430,11129,47929,42029,00033,71433,87935,73035,99335,741
Buses and Coaches1811871962311271411341401681111191251359597727355
Light Goods Vehicles4,1204,2314,4264,6254,7735,2985,6905,9526,3694,7394,9055,0425,4415,0975,5805,5705,8555,393
Two-axle Rigid HGVs8759019338949669851,019977973754798798806798762849878663
Three-axle Rigid HGVs14317319419622422322521524112512613614813514012912571
Four-axle Rigid HGVs124130146153180194212224237122106120137123126178194261
Three-axle Articulated HGVs3693513303093092812512252051261431088693949781101
Five-axle Articulated HGVs533496446388362324286283260560514497509272253302282834
Six-axle Articulated HGVs448544617666770835893953973478467483529818877771804292
All HGVs2,4922,5952,6662,6062,8112,8422,8862,8772,8892,1652,1542,1422,2152,2402,2512,3262,3642,221
All motor vehicles37,17938,30939,08139,77939,77039,95740,52038,39938,61237,39936,91537,00037,04841,35442,02943,91744,50143,636

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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