Majalah Ilmiah UNIKOM

Vol.8, No. 2

209

H a l a m a n

Muhammad Aria

traffic of the selected phase is rather bad,

Urgency

Urgency

have 5 membership functions. Figure 9.

shows the membership functions of Ur-

gency.

For the Select Max Urgency, 2 outputs are

Urgency) Phase

Urgency

Urgency

Urgency

these lanes are combined as the value of

that phase. The phase, which has the high-

Urgency

Phase

phase selected for the next phase after the

green phase.

In this Module, 65 rules have been devel-

oped to relate the 3 inputs to the output,

Urgency

the labels Z means Zero, S for Short, M for

Medium, L for Long and VL for Very Long

Fuzzy Logic Green Phase Module

GreenPhase Module

traffic conditions of the green phase and it

consists of 2 inputs which are (1)

QueueNumFrontNum

ExtendQueueNum

ing vehicles in a lane during the green sig-

FrontNum

of the vehicles in the link where vehicles will

go to this link during the green phase. The

GreenPhase ModuleExtend

which translates into the possibility of ex-

tending the green phase. The membership

function of these inputs are the same as

NextPhase Module

Figure 6 and Figure 7.

Extend

of 5 membership functions. This member-

Urgency

membership function as shown in Figure 9.

In this module, 17 rules have been devel-

oped as given in Table 2

Figure 7. Membership functions

for FrontNum

Figure 8. Membership functions

for RedTime

Figure 9. Membership functions for Urgency