1
Q
LENGTH OF 1 STATION
A
20m
2
Q
ARC BASIS RADIUS R
A
20 = RIpi / 180deg
3
Q
Chord Basis Radius
A
10/sinD/2
4
Q
LENGTH OF TANGENT T
A
R tan I/2
5
Q
LENGTH OF LONG CHORD Ch
A
2R sin I/2
6
Q
COMPOUND CURVE COMMON TANGENT
A
T1+T2
7
Q
SPIRAL CURVE LENGTH s
A
L^2 / (2RcLs)
8
Q
SPIRAL CURVE x
A
L^3 / (6RcLs)
9
Q
SPIRAL CURVE y
A
L - L^5 / (40Rc^2Ls^2)
10
Q
DEFLECTION ANGLE i
A
s/3
11
Q
OFFSET FROM TS TO SC xc
A
4p
CORREL 3 FINALS FORMULA
flashcards
Decks in class (3)
# Cards
