 The driver shortage, which some observers say has exacerbated by the U.S. and Canadian vaccine mandates restricting truck drivers cross-border movement, will benefit CN as current and prospective customers seek rail as a freight alternative to trucking, executives said during a call with investors late Tuesday afternoon to discuss fourth-quarter 2021 financial results. The driver shortages and the lack of truck capacity are things that are boding well for us to pick up some volume as the trucking market deals with the vaccine mandates, said Keith Reardon, CN senior vice president for the consumer product supply chain. 