Did you watch Tracey Moseley’s explaination of the PMB uplift? (Watch it here).
These are the uplift trucks she was talking about.
There are about eight assorted trucks (lorries/wagons) running every twenty minutes, 200 ish riders, 15 riders per truck.
Sounds like the start to a GCSE mathematics question, hope the answer works out okay.
downhill mountain bike World Cup Uplift pietermaritzburg style in south africa