At a client’s site in the Midlands, the speed limit generally on site was 10 mph but fork lift trucks were capable of 15 mph including in the several factory units and warehouses.
With floors slippery with dust and little segregation between trucks and pedestrians it had to be done; I had the engineer who maintained the trucks regulate them all down to 5 mph. There was a hue and cry at first but it was surprising how quickly people got used to it. Where a reasonable case could be made I’d reach a compromise with the department manager – it was a large site after all – but a rule of 5 mph inside buildings was firmly established. In due course, by applying a particular kind of risk assessment designed for workplace transport, we did something about the slippery floors and segregation too.