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Sub-problem 3a - Page 9 of 9 |
ID# C103A09 |
Sub-problem 3a: Oversaturated
Intersection Analysis
Exhibit 1-34 shows the results of the analysis for time period
4 (4:45 - 5:00 pm):
|
Exhibit 1-34. Lane Group Capacity, Control Delay, and
LOS Determination at Styner-Lauder under Signal Control (4:45 - 5:00 pm) (Dataset17) |
|
Approach |
EB |
WB |
NB |
SB |
|
Movement |
LT |
TH/RT |
LT |
TH/RT |
LT |
TH/RT |
LT |
TH/RT |
| Adj flow rate |
45 |
235 |
55 |
235 |
145 |
1,060 |
50 |
1,480 |
|
Lane group capacity |
257 |
422 |
257 |
430 |
148 |
2,092 |
246 |
2,078 |
| v/c ratio |
0.18 |
0.56 |
0.21 |
0.55 |
0.98 |
0.51 |
0.20 |
0.71 |
| Green ratio |
0.25 |
0.25 |
0.25 |
0.25 |
0.58 |
0.58 |
0.58 |
0.58 |
|
Control delay |
19.1 |
31.9 |
19.7 |
24.5 |
607.3 |
8.3 |
5.5 |
9.5 |
| Lane group LOS |
B |
C |
B |
C |
F |
A |
A |
A |
| Approach delay |
29.9 |
23.6 |
80.4 |
9.4 |
| Approach LOS |
C |
C |
F |
A |
| Intersection delay |
38.3 |
Intersection LOS |
D |
The results for the fourth time period are much the same
as for the third time period. All volume/capacity ratios are less than 1.0,
so all demand is served during this 15-minute period. As before, delays are
high for the NB LT movement.
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