The announcement follows the labor group securing a new mandate from its members to hold strikes, potentially over the next six months.

The state-owned railway operator SNCF was forced to cancel one in three TGV high-speed trains because of strikes.

Uncommon Goods can experience sales spikes during its typical six-week peak period of up to 10 times the average volumes in Q1 and Q3, and typically does two-thirds of its business in Q4.

Railroad workers are organizing rallies across the country, and more than 70 members of Congress have signed a letter urging Biden to guarantee seven days of paid sick leaves.

Executive Director Gene Seroka said cargo that has shifted away from West Coast ports due to protracted labor negotiations.

Employees, who filed for the union election in October, say the difficult nature of the job, compared with working at a regular Starbucks, has fueled high turnover.

Unions have accused the U.K. government of thwarting higher pay offers from train companies, while ministers argue that steep raises could end up worsening the cost-of-living crisis.

In a time of labor shortages in the warehouse, conveyor automation itself can negatively impact throughput, says Todd Stewart, industry manager for Flexco.

Workers at Felixstowe were among the first groups to strike in the summer over wages. Industrial action has subsequently spread.

Maritime-area employers until just recently have enjoyed strong profits. But the sharp drop in volumes to West Coast ports could work as a bargaining chip in their favor, against longshoremen, and play into Biden’s hand.