Select the true items related to cycle and phase. Select only the four correct answers.
Select the true items related to cycle and phase. Select only the four correct answers.
When a particular phase is green, all other phases may be green or red.
A cycle includes a complete set of phases plus all-red.
A phase includes a complete set of cycles plus all-red.
Cycle is the time duration required for one complete colour sequence of signal indication to provide right of way for all possible movements.
The duration of a phase is greater than the duration of a cycle.
When a particular phase is green, all other phases must be put in red.
Cycle is the time duration required to provide a green-yellow-red sequence so that movements of a phase receive right of way.
The duration of a phase is smaller than the duration of a cycle.
The time required for the complete sequence of the signal aspect at any branch from the intersection of red to the start of the next red is called "cycle time". This time varies from 35 seconds to 60 seconds for simple right-angle intersections depending on road width and traffic.
(ii) Stage:
The portion of the signal period is allocated to any one traffic movement or combination of traffic movements.
(iii) Time period:
Any part of a signal cycle where the signal indicators do not change.
(iv) Time Lost:
Time is lost at the start and end of the green period due to the start time and end time. As soon as the signal turns green, the discharge rate (or vehicle movement) begins to accelerate and it takes some time before the speed reaches its maximum value. Similarly at the end of the green phase, traffic tends to drop, resulting in further loss of time.
(vi) Intercontinental period:
This is the elapsed time between the green period of the de-priority period and the start of the green period of the preemptive period.
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