Nissan and Walmart say they have effective plans to minimize impact of West Coast port delays.
A temporary yard for empty containers could be available for truckers by the end of the month.
The ocean carriers say no major changes are planned until after the end of first quarter of 2015.
Port director's tenure has seen projects to deepen harbor, raise Bayonne Bridge, expand marine terminals and intermodal rail.
Hueneme CEO says port could offer relief valve for congestion.
Consensus shows better growth than other parts of world.