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Statistical analysis of truck loading on Swedish highways.
KTH, School of Architecture and the Built Environment (ABE), Transport Science.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Vehicle over loading, or single axle over loading, is one of the

major causes of pavement deterioration. Trafik Verket (TV), the Swedish

Transport Administration, recognized that the current process for estimating

traffic volume should be reevaluated, and if possible improved. This degree

project uses data from the Bridge Weigh in Motion (BWIM) system to study

the actual loads applied to Swedish highways. The axle load spectrum is

plotted with the conventional frequency distribution plots, and with a new

cumulative distribution approach. The paper introduces the maximum

allowable potential vehicle weight MAPVW concept, and uses this visual

technique to identify overloads for different vehicle geometries. The paper

concludes that for 5 and 6 axle trucks the triple axle is frequently overloaded,

while for longer trucks one of the dual axles is often over loaded. The highest

over loads tend to be on the driving axle, suggesting incorrect loading


Place, publisher, year, edition, pages
2011. , 98 p.
Trita-VBT, ISSN 1650-867X ; 11:01
Keyword [en]
BWIM data; Axle load spectra; Outer axle distance; Inter axle
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-45980OAI: diva2:453246
Available from: 2011-11-01 Created: 2011-11-01

Open Access in DiVA

fulltext(1182 kB)