Tests were conducted to determine solutions to future efficiency improvements in routing software, when used in the context of multi-carrier urban deliveries rounds with clean vehicles. The findings tend to show that current problems are hindering IT systems to produce optimised routes that would be better than an experienced driver in terms of distance, time and costs. However, in some cases, improvement potential was detected and manual effort added to optimised routing were leading to substantial savings. Far from ideal, current systems require substantial change to surpass the practical experience of urban delivery drivers in applying to frequent delivery within city centres.
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