traverse
The cross rails are attached to the factory roof rack side rails. They will serve as the base mount for cargo.
At the point where the rails cross.
pass, cross, track
The word you are looking for is "transcend." It means to go beyond or rise above a particular limit or boundaries.
The inside rails inside of the main rails are called guard rails. They are there so that if there is a derailment the train will stay within the rails instead of off of the trestle.
Yes, you do need cross bars
the stiles are vertical and the rails are horizontal, in other words, the stiles are the side pieces and the rails are the cross pieces
The Atlantic Ocean
You can use "traverse" in a sentence like this: "The hikers had to traverse a rocky mountain path to reach the summit." In this sentence, "traverse" means to travel or move across a difficult terrain or obstacle.
When sleepers are placed below the rails, the area of cross-section is increased. We know pressure= Force/Area. When the trains run on the rails, the pressure is small because of large area of cross-section of the sleeper. Hence, ground will not yield under the weight of the train.
remove the bolts at the frame rails