Dutch design method - ICPA

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Dutch design method - Some axle loadfrequency distributionsAxle loadgroup (kN)20-4040-6060-8080-100100-120120-140140-160160-180180-200200-220Average nr. of axlesAveragewheel load P(kN)152535455565758595105Overloaded axles (%)Axle load frequency distribution (%) for some type of roadsHeavily loaded motorway20.1630.5626.0612.546.512.711.000.310.120.033.5≈ 12Normally loadedprovincial road24.8432.4521.3611.126.482.700.830.190.030.003.5≈ 10Rural road49.3825.9713.668.052.180.380.380.000.000.003.1≈ 326 October 2009 32
Dutch design method - Tire typefrequency distributionsEquivalent radius of tire:a = b √(0.0028*P + 51) [mm]Type of tireSingle tireDual tireWide base tire(super single)Extra wide widebase tireParameter b9.212.48.79.1Frequency distribution (%)roads3938230public transportbus lanes50500026 October 2009 33
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Page 5 and 6: Overview aspects of European design
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Dutch design method - ICPA

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