Example 5.2 Contd
Therefore
Total delay during peak hour
Delay per arriving vehicle (excluding delay at stop-line)
Thus, the average delay per vehicle is 1.3 minutes, with a queue length of five
vehicles.
DPQ)P) +1
P
Q=
2
234
D
hours
= 79 seconds per vehicle
v^212
v
=¥ + -
=¥[]+
=+
=
¥
=
=¥{}[]+ - +
=
05
05 016
1
234
008000427
0 0843
084
0 0072
05 00843 0 0072 0 0843 1 234
0 0219
212
.((
..
..
.
.
.
.(.. ).
.
m
DFG)F)
F
G
D
hours.
t^212
t
=¥ + -
=¥-[]()¥¥+
=
=¥ ¥ ¥
=
=¥ + -
=
05
05 1 084 234 1 1
11 72
2084 234 1
393 12
05 1972 393 12 17 72
41
212
.(
..
.
.
.
.((. .) .)
.
A
B
L
cars
=-[]()¥¥+
=
=¥ ¥ ¥
=
=¥ + -
=
1084 234 1 1
38 44
4084 234 1
786 24
05 3844 786 24 32 45
5
212
.
.
.
.
.((. .) .)
The Design of Highway Intersections 117
5.3.3 Geometric layout details (DoT, 1995)
Horizontal alignment
In the ideal situation, the priority intersection should not be sited where the
major road is on a sharp curve. Where this is unavoidable, it is preferable that
the T-junction is located with the minor junction on the outside of the curve.
