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