Fig. 5
From: Empirical distributions of traffic loads from one year of weigh-in-motion data
Number of axles per vehicle. (a) Relative frequency distribution of the number of axles conditioned to light vehicles; (b) relative frequency distribution of the number of axles conditioned to medium vehicles; (c) relative frequency distribution of the number of axles conditioned to heavy vehicles; (d) relative frequency distribution of the number of axles conditioned to vehicles with mass greater than 44 t.
