It all depends on your location.
At bigger hub areas,yeah,its gonna be dock work.
However,if you get in with a medium sized terminal during a growth,you can jump up fast.
I transfered over to Freight about 4 years ago,and passed on several chances to go to the road. In that time,we have added about 26 new runs,and I would have been able to hold a pretty decent run (500mi) or be #4 on the extra board.
Still,I moved up quick in the city. When I hired on,I was #14 out of 14 city drivers. When they added to the road,a lot of the city guys above me jumped. Now,I am #6 out of 22 city drivers.
Its all about location.
I came at a good time. I hired on,worked on the dock a week,and went straight to a route. When we had the merger,I got kicked back to the dock for all of 4 days,they added8 road runs,and I was right back in the city.
Its not as hopeless as everyone would lead you to believe