two railroads provided Albany with a connection to boston from the Midwest via the Mohawk valley. Form montreal a numder of railroads different parts of new England. Consideration of schedule frequency and and flow density suggest certain trunk line, as shown on the diagram. The New york-boston connection and the boston-albany connection were clearly trunk lines, as was the Connecticut valley link between the two, from new Haven north through hartford there was a well-developed feeder pattern of routes focusing on boston from northern new England, exemplified by the boston and Maine rail road.