The GreenPhase Module:
This module observes the traffic conditions of the green phase. It has two inputs:
(1)
QueueNum: QueueNum
refers to the remaining vehicles in a lane during the green signal.
(2)
FrontNum
:
FrontNum
is the number of vehicles, which will go to the link during the
green phase.
It has one Output:
Extend:
This output translates the possibility of extending the green phase. Extend consists 5
membership functions.
There are 10 rules in this module:
According to this rule in Table 4 if the value of
QueueNum
increases, the value of the output
Extend
also increases proportionally. But when
FrontNum
value increases,
Extend
value
decreases. Toget the output values of
GreenPhase Module
, need to combine all the values of
Extend
of every lane in that green phase.
Table 4: GreenPhase Module Fuzzy Rules [3]
14
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