What is the most efficient way to travel on the east coast?

I'm going to be traveling from Boston to Bristol, RI, to NYU to Ithica, NY to Ontario, Canada. Please let me know the best ways to travel between any of these routes if you have any ideas. Thanks.What is the most efficient way to travel on the east coast?Amtrak connects all of these cities together, even though you may have to take a taxi or bus from the train station to a town like Ithaca or Bristol.