In the context of the foreign exchange market, traders liquidate their positions in various currencies to take up positions in safe-haven currencies, such as the US dollar. Sometimes, the choice of a safe haven currency is more of a choice based on prevailing sentiments rather than one of economic statistics.
Typical commercial US dump trucks are double-axle dually setups carrying about 10 cubic yards of material, which is about 10 short tons for typical materials like gravel or soil. A big, heavy-duty triple-axle model might reach 15 tons. A single-axle model based on a passenger truck might only hold 3 tons. A side-dump semi trailer might hold 30 tons.
Gravel weighs approx 1.35 tons per cubic yard. So a 10 cy load would weigh 10 x 1.35 tons = 13.5 tons of gravel. An average tandem truck can carry @13 tons legally, the largest straight dump truck, a Strong super dump, can carry @26 tons with 7 axles including a Strong arm! This will be around the same for sand too.