Smart Traffic Management System With Arduino

by | Mar 19, 2023 | Arduino, Basic Coding, Coding

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Introduction of the Project

Are you tired of sitting in traffic or seeing long lines of cars stuck at red lights? With the power of technology, you can take matters into your own hands and build your own Smart Traffic Management System with Arduino!

By using this DIY project, you’ll be able to monitor and control traffic lights, collect data on traffic patterns, and adjust signal timing based on real-time conditions. To build this Arduino project, we will use a micro servo to control traffic using a delay function.

Overall, building your own Smart Traffic Management System with Arduino is a fun and educational project that can have real-world benefits for your community. Not only will you learn about programming and electronics, but you’ll also be making a positive impact on traffic flow and safety.


In order to make a Smart Traffic Management system with Arduino, we will require the following components.


To develop this project physically, the components can be purchased online from Amazon, or you can get them from any electronics store near you. We have built this project online on the TinkerCad website. Once you have these components, you can start building your system by connecting the servo motors to the Arduino board and programming it to control their output.

Circuit Diagram

Steps To Build A Smart Traffic Management System With Arduino

Step 1: Gather all the components on the Digital Board or Physical Table.

Micro Servo:

Step 2: Connect the Ground terminal of each to the GND pin of the Arduino.

Step 3: Connect the Power terminal of each to the 5V pin of the Arduino.

Step 4: Connect the Signal terminal of it to the 4, 5, 6, & 7 number pins of the Arduino, respectively.

Source Code

#include <Servo.h>
Servo s1, s2, s3, s4;
void setup()
void loop()


Explanation of the Code

1. First, we need to include the Servo library.

2. After that, we declared the objects of each servo.

3. In the setup function, we have attached each servo to the pin number to which they are connected and written each to 90 degrees initially.

4. In the loop function, we are changing the opposite servo degrees to 0 to 90 and 90 to 0, respectively, after a time period of 10 seconds, as used in the delay function.


We have demonstrated the final output of this smart traffic management system project below.

Smart Traffic Management System with Arduino

On starting the simulation, the servo motor will give way to each path for some stipulated time.


We have shown a simple simulation of a smart traffic management system. You can improve the functionality of this system by using the Wi-Fi module.

With the Wi-Fi module, you can connect this system to the internet, allowing you to remotely monitor and adjust traffic flow as needed. By using real-time traffic data, you can optimize signal timing to reduce congestion and improve safety for drivers, cyclists, and pedestrians and, ultimately, make your community a better place to live.

Whether you’re a student looking for a challenging project, a tech enthusiast wanting to experiment with new technologies, or a community member wanting to make a positive impact, building your own Smart Traffic Management System with Arduino is a fun and rewarding experience that you won’t want to miss!


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