Sokkia CX-52 Operator's Manual page 163

Calculation using KE2 as reference: "KE
AZ
KA
KE-KA
Curve length
Q
Q Stationing Chainage
KE
BP

• If the following conditions are not met, coordinate calculation cannot be
performed.

"KA KE Calculation 1":

"KA KE Calculation 2":
"KEKA Calculation":
PROCEDURE Calculation using KA Point as reference
1. In the second page of the OBS mode
screen, press [MENU], then select
"Road".
2. Select "Spiral" to enter the spiral menu
then select "KA-KE 1".
Stationing Chainage
0
0 ≦ KA - reference point curve length ≦ 3A
0 ≦ KA - target point curve length ≦ 2A
0 ≦ KA - KE curve length ≦ 3A
0 ≦ KA - target point curve length ≦ 2A

KA Calculation"
KE point (P1)
KE tangential angle (AZ)
Clothoid parameter A
KE to KA curve length (L)
KE follow-up distance (DL1)
Target point follow-pu distance (DL2)
Route width (BL)
≦ ≦
curve length
R o a d
O c c . O r i e n .
L i n e
C i r c . C u r v e
S p i r a l
P a r a b o l a
S p i r a l
K A - K E 1
K A - K E 2
K E - K A
24. ROUTE SURVEYING
2A
155