Design andAnalysis ofaTwoStage Traffic Light System Using Fuzzy Logic

Fuzzy Rules and Defuzzification
The inference mechanism in the fuzzy logic controller resembles 
that of the human reasoning process. Fuzzy logic technology is 
associated with artificial intelligence. For example, a traffic policeman 
managing a junction say, one from the east and one from the north he 
would use his expert opinion in controlling the traffic more or less in 
the following way:
IF traffic from the east side of the city is VERY-LARGEand traffic 
from the north sides is SMALLthen allow movement of traffic to the 
east side LONGER
In two stage traffic light system using fuzzy logic, we develop two 
different modules namely traffic urgency decision module (TUDM) 
and extension time decision module (ETDM). In TUDM 25 fuzzy rules 
have been found and for ETDM 16 rules have been found.The some 
Figure 4:
Proposed extension time decision module.