Traffic signal working model for school science exhibition project with explanation


In this topic, we are going to show you how to make a traffic signal model for your science project or exhibitions using waste materials available at home easily

Traffic Signal Working Model using Thermocol

What is Traffic Signal Lights?

Traffic signals are known as traffic light, traffic semaphore, traffic lamps, stop lights, robots, signal lights, and traffic control signals.

Where does the Traffic Lights Installed

These devices are located at pedestrian crossings, road intersection, and other locations to control the flow of traffic.

History of Traffic Lights

World’s first traffic light was manually operated gas-lit signal in London in December 1868.

The first automated traffic control system was patented by Earnest Sirrine from Chicago in 1910.

What are Red, Green & Yellow Lights Stands for in Traffic Light?

Traffic signal working model using cardboard

Traffic lights help users by illuminating lamps or LEDs of standard colors (red, yellow, and green).

Traffic Rules

Greenlight allows traffic to flow in the direction shown on the light only if it is safe to proceed further and there is room on the other side of the intersection.

Yellow light warns the user’s that signal will soon be turned to red. Action to be taken when yellow light turn on varies with jurisdictions requiring drivers to stop if it is safe to do so.

Red signal stops the flow of traffic. Also flashing red indicates stop sign. Some countries traffic signals start to flash if there is a fault.

Flashing lights are also used in late nights when the flow of traffic is light.

What Technologies Being Used?

Houses of Parliament in London were the first to have non-electric gas-lit traffic lights to control traffic in Bridge Street, Great George Street, and Parliament Street.

J. P. Knight of Nottingham proposed this idea from his design of railway signaling systems. Semaphore light had horizontal arms when extended horizontally would command drivers to “Stop” and lowered 45-degree arms would tell drivers to proceed with “Caution”.

Lister wire built electric traffic light in 1912.

How To Build Traffic signal working model School Science Project Step by Step Video

In this video, we will show you the following steps and items that can be used to build a traffic signal model at home by taking help freely from your parents.

Materials Used to make Traffic signal working model

  • Sketch Pens
  • 7 V Battery
  • Led bulb
  • Electric wire
  • White Chart paper
  • Fevicol
  • Color paints
  • Pin
  • Pencil
  • Paintbrush
  • Hot Glue Gun
  • Waste Cardboard Boxes for traffic signal
  • Scissor to Cut

Prepare for Science Fair Questions & Answers – Traffic signal working model

  1. What are the types of traffic signs?
    Three types of a traffic signal are regulatory, warning and guide signs. In poor visible conditions, the shape of the sign indicates important information about the sign’s message.
  2. What are the types of traffic signals?
    Types of traffic signals are pedestrian signals, warning flashers, actuated signalized intersections, beacons and bridge controls, and warning systems.
  3. What are the basic traffic rules?
    Always be attentive and look for pedestrians and be aware of other vehicles around you. During driving, pedestrians have the right of way in comparison to cars.
  4. What is the purpose of the traffic signs?
    Purpose of a traffic signal is to control the flow of traffic at roadway, highway, pathway or other routes to warn.


It is very important to understand various traffic signals and meaning of various colors of traffic signal that are adopted in different countries around the world. It helps in avoiding unnecessary accidents.

In this topic, it helps the students to learn how the traffic signals circuit works, and its rules.

As well helps to demonstrate on how to make a traffic light with led

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