Density Based Traffic Signal with Remote Override in Emergency

Model: 311

Solderable DIY project kit for Engineering & Diploma students Worldwide

Do-It-Yourself Kit :

Includes complete hardware comprising of discrete components, modules, PCB, controller etc. and tested program code for building the project. Extensive documentation for project execution including step-by-step instructions for Circuit building, Assembly procedure and Troubleshooting. (Tool kit-Multimeter, Soldering iron and program burner not included in the kit)

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The project is designed to develop a density based dynamic traffic signal system having remote override facilities. During normal time the signal timing changes automatically on sensing the traffic density at the junction but in the event of any emergency vehicle like ambulance, fire brigade etc requiring priority are built in with RF remote control to override the set timing by providing instantaneous green signal in the desired direction while blocking the other lanes by red signal for some time.

Traffic congestion is a severe problem in many major cities across the world thus it is felt imperative to provide such facilities to important vehicles.

Conventional traffic light system is based on fixed time concept allotted to each side of the junction which cannot be varied as per varying traffic density. Junction timings allotted are fixed. Sometimes higher traffic density at one side of the junction demands longer green time as compared to standard allotted time.

The proposed system using a microcontroller of 8051 family duly interfaced with sensors, changes the junction timing automatically to accommodate movement of vehicles smoothly avoiding unnecessary waiting time at the junction.

The sensors used in this project are IR and photodiodes are in line of sight configuration across the loads to detect the density at the traffic signal. The density of the vehicles is measured in three zones i.e., low, medium, high based on which timings are allotted accordingly. The override feature is activated by an on board RF transmitter operated from the emergency vehicle.

Further the project can be enhanced by synchronizing all the traffic junctions in the city by establishing a network among them. The network can be wired or wireless. This synchronization will greatly help in reducing traffic congestion.


Battery not included in the kit due to Courier service prohibition. Please buy four AA CELL 1.5V batteries for this project to be used for the Remote.

Remote Included


Easy to use, Self-explanatory kit.

All-inclusive solution kit.

Extensive audio-visuals available.

Branding-free material.

Pre-programmed Microcontroller.

Call/mail for Tech Support from 10 am – 7 pm.

Can be Customized for Arduino, Raspberry Pi, PIC


Hardware Requirements

  • 8051 series Microcontroller
  • Crystal
  • LEDs
  • Transistor
  • Transformer
  • Diodes
  • LED
  • IR-LED & Photodiodes
  • Capacitors
  • Resistors
  • encoder and decoder ICs

Software Requirements

  • Keil compiler
  • Language: Embedded C or Assembly

Q & A

Buyer Feedback

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  1. Rated 4 out of 5

    Monoronjan Raha Roy

    I got to know about edgefx through one of my friend. He has suggested me the edgefx website. I have decided to buy project from edgefx because my friend he has purchased the project and he has suggested me in purchasing the project. I like most about edgefx was the service. My friend gave the customer executive number. So, i have contacted them they helped me in purchasing the project. Please make sure to Provide more presentations of the projects. My friend gave me reference. So, i would like to give reference to my other friends..

  2. Rated 4 out of 5

    Sarath Chandran

    I got to know about Edgefx while I was searching for Traffic projects in Google. Since Edgefx is providing Do it yourself kit also so decided to buy my project from Edgefx. I liked the explanation of video. Purchased through online. For me things are fine and not facing any problems so no changes keep doing the same work.

  3. Rated 4 out of 5

    Arsheen Fathima Khatib

    I had known about EDGEFX through one of my friend. I have seen the video on YouTube, and I have entered into your website for purchasing the product through online. I directly placed order through online with the help of my friend. I am satisfied with my project

  4. Rated 4 out of 5

    Arsheen Fathima Khatib

    I found Edgefx through Google while I was searching for the projects. I used Major projects as a keyword in Google.I decided to buy a kit from Edgefx because along with the kit I get the Report and PPT’s. Yes it’s on time.I purchased through online.No improvements.

  5. Rated 4 out of 5

    Arsheen Fathima Khatib

    I came to know about Edgefx through Friend. And I directly used the I like the Presentation in my kit. Yes the kit delivered to me at right time with all the components.No I purchased through online. No Suggestions.