I have ran the turnpike hardly any in the last 15 to 20 years until recently. Thought i'd save on toll money for the company, and save having to match any documents to any other documents, so I just ran rts. 79, 19, 39, and 20 all the time. Now that we have to run legal and have secret spy cameras in the trucks I take whatever route is easier for me. And it is no doubt quicker, with a lot less hills.
For example, I left Sharon, Pa. one day last week at 1PM. I had 2 coils on, 46,000 lbs, going to Madison Heights- that's just across the river from Lynchburg. My 14 hours were up at 9PM. I don't know if I could have even made it by 9 if i'd went down 79, if I had I would have had to "hammer down" the whole way, and pretty much non-stop.
I jumped on the pike, went over to Breezewood and down, and got to Madison Heights at 8:30, 30 minutes to spare!