Design andAnalysis ofaTwoStage Traffic Light System Using Fuzzy Logic



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design and analysis of a two stage traffic light system using fuzzy

Traffic urgency decision module 
Traffic urgency decision module (TUDM) calculates urgency for 
all red phases as shown in Figure 3. On the bases of urgency degree
proposed system selects the next red light phase to switch. There are two 
input variables namely 
Queue, Time
r
and one output variable namely 
Urgency
. The input variable 
Queue
count the number of vehicles of 
current red light phase and variable 
Time
r
count the duration of red 
light since the last end of the green light. The output variable 
Urgency
is traffic urgency of red light phases. Therefore for instance in the case 
of Phase 1, TUDM will determine the urgency (U1) by processing the 
queue length and duration of red light since the last end of the green 
light of phase 1. Similarly, for phase 2, TUDM will determine the 
urgency (U2) by processing the queue length and duration of red light 
since the last end of the green light of phase 2 and so on.
Figure 3:
Proposed Traffic urgency decision module.


Volume 5 • Issue 3 • 1000162
J Inform Tech Softw Eng
ISSN: 2165-7866 JITSE, an open access journal
Citation:
Alam J, Pandey MK (2015) 
Design and Analysis of a Two Stage Traffic Light System Using Fuzzy Logic. 
J Inform Tech Softw Eng 5: 162. 
doi:
10.4172/2165-7866.1000162
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