For the United States, substantial numbers of shipping containers must be transferred from one side of the country to the other. As the major highway and railroad crossroad, Chicago receives the... Show moreFor the United States, substantial numbers of shipping containers must be transferred from one side of the country to the other. As the major highway and railroad crossroad, Chicago receives the bulk of this intercontinental inter-modal traffic, making it the third largest container port in the world. In many instances, containers are even moved from one railroad to another by truck, exhausting street and highway capacity. Meteoric growth in container movement is expected to continue. Show less