A              MINI PROJECT REPORT                       ON              TRAFFIC LIGHT CONTROL                        BY  ...
CERTIFICATEThis is to certify that, the project TRAFFIC LIGHTCONTROLentitled a bonified record of project work submitted b...
(Dr.U.D.Kolekar)              ACKNOWLEDGEMENT     It is my great pleasure to acknowledge the assistance andcontribution of...
TABLE OF CONTENTSSr. No.            Topic                      Page no.1.                 Introduction                   5...
INTRODUCTION       Traffic signals are used to control the flow of vehicles.Inthe recent years, the need of transportation...
CIRCUIT DIAGRAM[Type text]                     Page 6
PIN DESCRIPTION--------------------------------------------------------------                        IC 555 TIMER        [...
WORKING PRINCIPLE      This circuit is self explanatory by its name, and can beused to control traffic in public places, o...
COMPONENT LIST              555 timer IC              4017 IC              Capacitors (c1) – 100mFD/16V              Resis...
ADVANTAGE       Reduction in normal recurring.       Significantly enhanced operational tools congestion to       effectiv...
APPLICATIONS              Ramp metering.              Timers.              fire station or medical emergency entrance.    ...
BIBLOGRAPHY       http://www.azdot.gov/highways/traffic/Signal.asp       http://www.kpsec.com       http://www/starmicromi...
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Traffic light controller

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Transcript of "Traffic light controller"

  1. 1. A MINI PROJECT REPORT ON TRAFFIC LIGHT CONTROL BY PARTH.S.CHOLERA Department of Electronics and Tele-communication 2011-12[Type text] Page 1
  2. 2. CERTIFICATEThis is to certify that, the project TRAFFIC LIGHTCONTROLentitled a bonified record of project work submitted byPARTH.S.CHOLERA, in partial fulfillment for degree inEXTC of , Mumbai University during the year 2011-2012 undermy guidance and supervision.DATE:PLACE: Thane GUIDE HEAD OF DEPARTMENT (Prof.Pawar) (Prof. A.M.Deshpande)External Examiner Principal[Type text] Page 2
  3. 3. (Dr.U.D.Kolekar) ACKNOWLEDGEMENT It is my great pleasure to acknowledge the assistance andcontribution of the individuals who co-operated us to completethe project work successfully. First and foremost, I wish toexpress my deep gratitude and thanks to Prof.A.M.DeshpandeHead of department of EXTC and our project guide Prof.Pawar,for their enthusiastic guidance and helping in successfulcompletion of project work. They provided us their precioustime for valuable suggestions and encouragement throughout thework. It is foe their patience, guidance and encouragement at alltime that this work has shaped up the way it is. A project is teamwork and reflects the contribution of manypeople. A number people contributed their time and efforts inmaking their project work a success. We would like to thankeveryone who contributed their time and efforts to help incompleting the project work.PARTH.S.CHOLERA[Type text] Page 3
  4. 4. TABLE OF CONTENTSSr. No. Topic Page no.1. Introduction 52. Circuit Diagram 63. Pin Description 74. Working of Circuit 85. Component List 96. Advantage & Disadvantage 107. Application 118. Further Modification 119. Bibliography 12 [Type text] Page 4
  5. 5. INTRODUCTION Traffic signals are used to control the flow of vehicles.Inthe recent years, the need of transportation has gain immenseimportance for logistics as well as for common human. This hasgiven rise to the number of vehicles on the road. Due to thisreason, traffic jams and road accidents are a common sight inany busy city. Traffic Signals provide an easy, cheap, automaticand justified solution to the road points where the vehicles mayturn to other directions e.g. roundabouts, culverts, busy walkthroughs etc. BASIC IDEA The project we have chosen is an 8-lanetraffic controller. The basic idea behind the design is to avoidthe collision of vehicles by providing appropriate signals todifferent directions for a limited time slot, after which the nextwaiting drivers will be given same treatment. In This way acycle will be established which will control the traffic. CONTROL SIGNALS The control signals are 3-lights.Top light is Red(Stop), Middle light is Yellow(Wait)Bottom light is Green(Go). STATES OF TRAFFIC FLOWThere are 8-lanes and at most two ways can be safely open. Inthis way a minimum of 4-states are possible for which differentvehicles will pass through[Type text] Page 5
  6. 6. CIRCUIT DIAGRAM[Type text] Page 6
  7. 7. PIN DESCRIPTION-------------------------------------------------------------- IC 555 TIMER [Type text] Page 7
  8. 8. WORKING PRINCIPLE This circuit is self explanatory by its name, and can beused to control traffic in public places, or to demonstrate trafficrules in traffic-parks. IC2, which is heart of the circuit, is adecade counter. In this counter for every pulse fed to pin-14,potential keeps shifting from D1 to D9 in cyclic order. IC1 isused as a pulse generator and generates pulses in regularconfigurable intervals. These intervals can be changed byvarying VR1. The circuit is designed in such a way that out ofnine pulses, relay RL1 remains triggered for 4 pulses, relay RL2for 1 pulse and relay RL3 for remaining 4 pulses. Since D1-D4provide current to T1, T1 is on whenever there is potential onany diode D1 to D4, which keeps relay RL1 triggered. Similarlyother diodes are responsible for RL2 and RL3 triggering. Red,Yellow and Green lamps can be connected to the relays RL1,RL2 and RL3 respectively to complete your mini traffic lightcontroller.[Type text] Page 8
  9. 9. COMPONENT LIST 555 timer IC 4017 IC Capacitors (c1) – 100mFD/16V Resistors R1- 10K LEDS (green,yellow,red) POT (P1) – 100K DIODES – IN4007[Type text] Page 9
  10. 10. ADVANTAGE Reduction in normal recurring. Significantly enhanced operational tools congestion to effectively manage traffic incidents. It improved public transport service. Reduction in emergency response times and safer travel. Improve traffic guidance and traffic flow Reduce fuel consumption Increase safetyThey increase the traffic-handling capacity of the intersection Less cost DISADVANTAGE Excessive delay may be caused. These unnecessary delay results in significant fuel waste and higher motorist costs. Disobedience of signals[Type text] Page 10
  11. 11. APPLICATIONS Ramp metering. Timers. fire station or medical emergency entrance. at the entrance and exit of some car washes at the landing-stage of a ferry and aboard the ferry. FUTURE SCOPE We can increase the efficency by using microprecessors (8086). We can use this as Remote traffic Controller.[Type text] Page 11
  12. 12. BIBLOGRAPHY http://www.azdot.gov/highways/traffic/Signal.asp http://www.kpsec.com http://www/starmicromics .com/components/mics.html http://www.mctraffic.org/signal.htm http://en.wikipedia.org/wiki/555_timer_IC[Type text] Page 12

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