Industrial Electronics EE 432

Yeditepe University Dept. of Electrical and Electronics Engineering

Fall 2010, Term Project

Industrial Electronics Term Project Design of a Demand-Actuated Automatic Traffic Light Control System for an Intersection

Due Dates: Control Date: December 06 2010 Due Date: December 20, 2010 ⇒ Always check web page for recent due date changes. You are required to upload your reports to the course web page as well as to submit printed copy of your report. Best project that satisfies specifications will receive 20% additional grade

Late submissions will not be accepted!! (no excuse)

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D. Yildirim - October 31, 2010

Industrial Electronics EE 432

Yeditepe University Dept. of Electrical and Electronics Engineering

Fall 2010, Term Project

1

Objective

The objective in this project is to design a demand-actuated automatic traffic light control system for an intersection as depicted in Figure 1 which employs loop-type inductive proximity sensor to detect the presence of vehicles coming from a secondary road (Canyon street) that has a very low traffic volume.
O ER AD

A

P RA

AH

O

AR_PLn

CS_TL AR_TL

AR_Sn

CS_PLe
one wa y
CS_Se

traffic control box

AR_PLs CS_PLw

North East
AR_Ss CS_Sw

push-button switch (normally open, NO)

CA

CS_Se=Canyon Street Pedestrian Switch, east CS_Sw=Canyon Street Pedestrian Switch, west

Figure 1: Demand-actuated automatic traffic light control system.

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on

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loop-type inductive sensor AR_PLs=Arapahoe Road Pedestrian Light, south (a few large loops of wire AR_PLn=Arapahoe Road Pedestrian Light, north placed in the pavement AR_Ss=Arapahoe Road Pedestrian Switch, south beneath the desired street) AR_Sn=Arapahoe Road Pedestrian Switch, north CS_PLe=Canyon Street Pedestrian Light, east CS_PLw=Canyon Street Pedestrian Light, west

AR_TL=Arapahoe Road Traffic Light... [continues]

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