(single line) (3-15)
The line of the route symbol indicates the true alinement of the road, scale permitting. When the route symbol
(line) curves, it denotes a curve on the ground.
Therefore, the symbol for a curve on the ground is a ________________________ in the route symbol on the
(width constriction; 6m; 91m) (3-45)
FRAME 3-46. REVIEW FRAME.
Let's review the symbols for obstructions we have learned so far. This example of a route recon overlay was
prepared for potential two-way tracked vehicle traffic.
Proceeding from west to east, the first obstruction we encounter is a ____________________
__________________ with a radius of _____________________ . The route turns south and begins a
_____________ km uphill grade of ___________%. Upon topping the ill and turning eat on a curve with a radius
_____________ than 25m, we proceed downhill on a ____________ km grade of ________%. The fourth and last
obstruction is a ____________ ______________ having a usable width of _________m and extending for