The cutbacks are a sign of the varied impact coronavirus-driven restrictions are having on different parts of the U.S. economy. Supermarket chains and retailers with strong online operations are wrestling with heavy demand, pushing shipments to truckers serving Walmart Inc., Home Depot Inc. and other stores, particularly those with coveted goods such as cleaning supplies. But transportation companies say factory closings aimed at containing the virus, which extend around the country, are weighing more heavily on their earnings. The biggest coronavirus-driven impacts in March “are for LTL carriers that are heavy on the industrial side, everything from auto parts to aerospace components,” said Satish Jindel, president of research firm SJ Consulting Group Inc. ArcBest, parent of trucker ABF Freight System, is trimming pay for executives and […]