Containership operating speeds have fallen by 5% since last year as carriers implemented slow steaming to cut operating costs. The speed reduction is most apparent in the largest size segments above 4,000 teu where operating speeds dropped by between 1 to 2 knots compared to just 0.5 knots reduction for ships of below 4,000 teu. According to Linerlytica’s estimates, slow steaming has helped to remove up to 6% of the effective vessel supply globally but the impact has started to reverse as  avera