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US 31665 PC 2.4 (Why? (AWF gives HPMV operators more loading options while…
US 31665 PC 2.4
Why?
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AWF allows operators to manage loads that are difficult to distribute uniformly and precisely across all axles.
AWF reduces the risk of an operator receiving an infringement for a minor error in accurate distribution of the load (axle weight infringements).
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How?
Class 1 AWF
Select this where all of the axles, axle sets and groups of axle sets are loaded below the general access limits, and flexibility is only required up to these limits,
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HPMV AWF
Select this when some of the axles, axle sets or group of axle sets are loaded above the general access limits, or where a greater level of flexibility is required.
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What if/next?
AWF increases the load effects of vehicles on pavements and structures. The higher the masses for individual axles, the greater the load effects, particularly on short-span bridges.
If a route has restricted bridges, AWF may therefore result in a reduction in permitted gross mass to offset the increased load effects.