A report for regional council on the future of the port:
https://www.halifax.ca/sites/default...1030rc1416.pdf
It has a lot of interesting details and attempts to address a bunch of the questions that have been floating around. The report suggests that the truck traffic has little impact on Cogswell in the sense that the Cogswell design would be the same with or without the truck traffic. The report enumerates a few different ways to mitigate the truck traffic, and explains why the port of Halifax is important nationally and is not easy to replace by shifting traffic somewhere else (to say nothing of the cost of rebuilding the infrastructure). It is close to the major American ports, can currently handle large container ships, and is the deepest port on the east coast. The report suggests that if Halifax loses business it will be American ports that gain the most, not Canadian ports.
It still seems incredibly short-sighted to think that the truck traffic is an existential crisis for the port, or that it is possible to cannibalize the port to send the business to other areas like Cape Breton.