195
PT 1800.000
,
1800.000
,
2000.000 CRLF
1.2
CALCULATION OF ROAD ALIGNMENT ELEMENTS
⑴
Calculation of the length of transition curve
L
2
.
1
=
R
A
2
2
.
1
L
2
.
1
: Length of transitional curve
A
2
.
1
: parameter of transitional curve
R
: radius
L
1
=
R
A
2
1
=
100
80
2
=64 m
L
2
=
R
A
2
2
=
100
80
2
=64 m
⑵
Calculation of Deflection Angle
=
A
L
2
2
2
1
=
80
64
2
2
2
= 0.32 rad
deg
0.32
180 =18°20′06″
1
= -
2
⑶
Calculation of coordinate of points on transitional curve:
2
A
N
....)
9360
216
10
1
(
6
4
2
2
A
E
....)
7560
1320
42
3
(
7
5
3
32
.
0
2
80
N
....)
9360
216
10
1
(
)
32
.
0
(
)
32
.
0
(
)
32
.
0
(
6
4
2
)
9360
4
0010734182
.
0
216
01048576
.
0
10
01024
.
0
1
(
64
)
00000011
.
0
00004855
.
0
01024
.
0
1
(
64
64 * 0.98981
63.348
Similarly, the value of E is
:
32
.
0
2
80
E
....)
7560
1320
42
3
32
.
0
(
)
32
.
0
(
)
32
.
0
(
)
32
.
0
(
7
5
3