MONTREAL — Canadian National envisions the day when its main line to the Port of Prince Rupert, British Columbia, will host 50 trains per day. “Our capacity right now on that line is about 25 trains a day,” CN CEO Tracy Robinson said. …The container terminal at Rupert can currently handle 1.6 million TEU, or twenty-foot equivalent units, but by the end of next year will be able to accommodate 1.8 million after an expansion project is completed. …Construction is under way on the Ridley Island Export Logistics Project at Prince Rupert. The project, which gained final environmental approval in March, will include large-scale bulk and breakbulk transload facilities, an intermodal rail yard, and a container storage yard. The facility will transload plastic pellets, cereal grains, specialty crops, lumber, and pulp directly from rail into containers for export. The first phase of the project will create 400,000 TEUs of export capacity.