I am modeling the New Haven Railroad's Norwich and Worcester branch. The primary time period is 1958, but I am also doing some early Penn central modeling of about 1969 and also early Conrail/Amtrak in 1977. The farther removed the modeling and operations from 1958, the more proto-freelanced it becomes. Even the 1958 modeling I take the liberties of having the line still in place and operational from Boston to Hartford that was actually severed in the floods of 1955. I also keep in place the passenger trains the East Wind, the Boston to Hartford (and Waterbury) local trains as well as routing the Stte of Maine over the N&W instead of over the P&W.