96
⑵
Slect “1. Define Roads” in the “Roads Menu”
and select “1. Define HZ AL.”
Select“1.Define
HZ AL”
Roads
1. Define Roads
2. Set-Out Roads
Roads(1)
1. Define HZ AL
2. Edit HZ AL
3. Define VT AL
4. Edit VT AL
5. HZ AL IMPORT
↓
⑶
Enter the start point information: chainage, N
coordinate, E coordinate, and pressOK.
It is also allows you to press READ to read in
the coordinate which is stored in memory.
Enter chainage,
N, E coordinate
+
OK
Start Point
CH
:
1000.000 3
N
:
1000.000 m
E
:
1050.000 m
READ OK
⑷
After entering start point information, the
“Main Line input Screen” is displayed.
(
Main line input screen)
Define HZ AL
Chain: 1000.000 3
AZ: 0°00′00″
1
STR ARC TRNS PT
The main line input screen displays current chainage and the bearing angle (the tangent line from the chainage) and
the function key (For creating new line). System provides four functions: defining straight line, circular curve,
transition curve, point. Select a function key, enter the detailed information of the chainage, the alignment elements
will be created. Press ENT key, the new chainage and bearing angle will be calculated automatically and the main
alignment screen will be restored. Now other line style can be defined. Press ESC to exit current screen. To modify
the element which entered in advance, you should enter the “Edit Alignment” option; the new elements can be
added only in the end of the original alignment file.
Straight line
When the start point or other line style is well-defined, it allows you to define straight line. A straight line consists
bearing angle and distance, the distance value can not be minus.