1. 2 3 4 controller timers or timing processes minimum green maximum green vehicle extension/passage...
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Detection zone
Minimum green
Passage time
Timer status
Display status
Maximum green
Active phaseConflicting phase
Detector status
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Time
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Time6
120
Minimum green
Passage time
Timer status
Display status
Maximum green
Min greenPassage time
10s3s
Max green 15s
Active phaseConflicting phase
Detector status
Detection zone
E
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4
Controller
• Timers or timing processes• Minimum green• Maximum green• Vehicle extension/passage time/gap time
The minimum green timer becomes active when the phase becomes active. The timer begins at the value set for the minimum green time and times down until it reaches zero, or times out. The green indication will be displayed for at least the minimum green time.
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Controller
• Timers or timing processes• Minimum green• Maximum green• Vehicle extension/passage time/gap time
The maximum green timer remains off at the beginning of a phase, until a serviceable call is received on a conflicting phase. When such a call is received, the maximum green timer will become active and will begin to time down. When the maximum green timer reaches zero and expires, the phase will terminate even if the passage timer is still active.
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Controller
• Timers or timing processes• Minimum green• Maximum green• Vehicle extension/passage time/gap time
The passage timer also becomes active when the phase becomes active. The passage timer begins at its established value and times down until it reaches zero, or times out. However, if a call is received on the active phase during this timing process (when the passage timer is active), the passage timer will be reset. But when the passage timer expires, and if the minimum green timer has expired, the green display will turn off and the phase will begin to terminate.
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Controller
• Timers or timing processes• Minimum green• Maximum green• Vehicle extension/passage time/gap time
The passage timer also becomes active when the phase becomes active. The passage timer begins at its established value and times down until it reaches zero, or times out. However, if a call is received on the active phase during this timing process (when the passage timer is active), the passage timer will be reset. But when the passage timer expires, and if the minimum green timer has expired, the green display will turn off and the phase will begin to terminate.
Hea
dway
Green Time
1 2 3 4
Green
Flo
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ate
Time
1 2 3 4
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• Phase termination at isolated actuated controller• Gap out• Max out
Controller