• Shipping lines have added more than 30 extra voyages to regularly scheduled Transpacific services to transport larger container volumes. Supply chain experts have warned that the record container volume levels at the Port of Oakland , which is up 30 % over 2017 , are largely due to frontloading . While the port is heading for its third consecutive year of record cargo levels , insiders said this year 's results are largely accelerated orders to beat the rise of the tariffs due to the US - China trade war , with many noting a sharp drop in January once the measures come into full effect . They also noted that warehouses are filled up with merchandise from Asia and shipping lines have added 30 voyages to transpacific routes .
Supply chain experts have warned that the record container volume levels at the Port of Oakland , which is up 30 % over 2017 , are largely due to frontloading . While the port is heading for its third consecutive year of record cargo levels , insiders said this year 's results are largely accelerated orders to beat the rise of the tariffs due to the US - China trade war , with many noting a sharp drop in January once the measures come into full effect . They also noted that warehouses are filled up with merchandise from Asia and shipping lines have added 30 voyages to transpacific routes .