A sawtooth line indicates a difficult approach. A straight line indicates an easy approach. The side symbol
where the straight or sawtooth line appears corresponds to the right or left bank of the stream.
A sawtooth line on the right of the ford symbol indicates a _____________________ approach on the
(two steep slopes; on width constrictions) (3-105)
Both slopes are greater than 7% and the width constriction is less than the 6m minimum width required for one-
way tracked vehicles. The six obstructions, then, the consist of the ford, the ferry, two steep slopes, a width
constriction, and one sharp curve.