This is my first post in the road trip forum and I was hoping someone could help me.
In august 2015, along with my wife and 2 children I am planning a 4 week stay in the USA. The tentative plan is to fly to boston and spend 2 nights there; travel to westerly, RI and spend 2 nights there with my wife's family; have a night in or around New York; travel to Niagra Falls and spend 2 nights there; drive to Orlando with 2 overnight stops (1 probably at savannah in Georgia, the other as far as we can get on the first drive). We will then be meeting family in Orlando for about a 3 week stay.
My main question is what are the roads like on the way down. It looks like we will travel on the I90, I79, I77, I26 and I95. Will any of these be toll roads? What speed limits are we likely to be faced with and are we likely to encounter much traffic or congestion.