How many lorries?

To get an idea of the road traffic implications of a busy freight airport - IF the freight has to arrive at night to meet the deadlines of that particular supply chain, then presumably it's going to need to be unloaded and on its way as soon as possible. So, one fully laden 747-400 equals how many lorries' worth of freight? Are the perishables being imported arriving in something as convenient as shipping containers that are then craned onto the back of lorries?

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