Flexi-Van executive says "misplaced" chassis have aggravated congestion.
The longshore union says the 'few issues that remain unresolved relate directly to the carriers.'
Despite presence of federal mediator 'no further agreements have been reached.'
Carriers are benefiting from lower oil prices, but face capacity overhang.
Hueneme CEO says port could offer relief valve for congestion.
Analysts from IHS Maritime & Trade predict continued increases in fatal incidents in both the shipping and passenger sectors.