|
Exhibit 3-41.
Comparison of Traffic-Actuated Timing Plans |
|
|
Method of
Determining Average Green Times |
|
Optimal
Pre-timed Values Used Directly as Average Green Times |
HCM Chapter 16
Appendix B with Max Greens Based on Pre-timed Optimal Values Multiplied
by a Factor |
|
Factor = 1.0 |
Factor = 1.5 |
|
Green Time (sec): |
|
|
|
|
WBLT |
9.7 |
10 |
15.0 |
|
EB & WB Through |
81.8 |
70.5 |
91.6 |
|
NB Through |
10.5 |
11 |
16 |
|
Cycle Length |
120 |
109.5 |
140.6 |
|
v/c ratio |
|
|
|
|
WBLT |
0.84 |
0.74 |
0.63 |
|
EB Through |
0.83 |
0.88 |
0.87 |
|
NB Through |
0.83 |
0.72 |
0.64 |
|
Critical v/c ratio |
0.83 |
0.85 |
0.81 |
|
Control Delay
(sec/vehicle) |
|
|
|
|
WBLT |
88 |
65 |
67 |
|
EB Through |
17 |
20 |
24 |
|
NB Through |
71 |
55 |
63 |
|
Overall
Intersection Delay |
23.0 |
23.3 |
26.6 |
|
Level of Service |
|
|
|
|
WBLT |
F |
E |
E |
|
EB Through |
B |
C |
C |
|
NB Through |
E |
D |
E |
|
Overall
Intersection LOS |
C |
C |
C |
