Aggregate Industries' plans for Straitgate would involve over 100,000 truck movements and some 2.5 million miles. The Campaign for Better Transport warns us that:
Given that HGVs produce 22 per cent of transport’s CO2 land transport emissions while only accounting for 5 per cent of vehicles it is crucial that more freight be transferred to rail and that HGVs become more efficient. While road haulage has long been competitive, load efficiency has not improved significantly nor has empty running which remains at around 28 per cent of HGVs.
For those used to old money, 35 litres/100km is about 8 miles per gallon.