>It seems that everyone now agrees that the bottleneck is yard space at the container terminals. The terminals are simply overflowing with containers, which means they no longer have space to take in new containers either from ships or land. It’s a true traffic jam
This seems like definitely not the real bottleneck. You have to ask yourself, "why is there no space to put new containers" and the answer is (probably) "well we don't have enough trucks to move the ones we have off the docks". Why don't you have enough trucks? This is where the root cause for the bottleneck probably splits. I'm speculating here, but we either don't have enough physical trucks (I doubt this) or we don't have enough labor to load the containers on the trucks and actually drive them off the dock.
Which is probably the most important question: why don't you have enough labor? I can venture a guess[1].
>Port truckers are typically independent contractors, without the benefits and protections of unionized transport sectors or even major companies with shipping divisions, like Amazon.com Inc. Their jobs require them to line up for hours to pick up cargo, and they’re paid only when they move it. [Emphasis mine]
>“The port truck driver, for decades now, has basically been the slack adjuster in the whole system,” said Steve Viscelli, an economic sociologist with the University of Pennsylvania who studies labor markets and supply chains. The entire system, he said, is built around free labor from truck drivers as they wait for containers.
Cut checks to these people, and get those containers off the docks. I feel like we're living through some Black Mirror version of The Wire Season 2.
[1]https://www.bloomberg.com/news/articles/2021-10-21/biden-tac...
Edit: added the larger context for the Bloomberg article quote