This study presents an innovative approach for smart traffic monitoring and detection using Tinkercad. Tinkercad is a web-based 3D modelling tool that allows users to create 3D designs, objects, and scenes using a variety of shapes and materials. The paper proposes the use of Tinkercad for the development of a system for the detection of traffic violations such as over-speeding, sudden lane change and illegal parking. The system is based on the use of 3D models of roads, cameras and sensors which are used to detect the traffic violations. The data collected by the sensors is then processed by a computer to detect the violations. This system can be used to effectively monitor and detect traffic violations in real-time and to take necessary measures to prevent them. The paper also discusses the implications of such a system on traffic safety and proposes an implementation plan. In earlier days, due to the low population density, traffic monitoring used to be simple. However, due to the tremendous increase in population, traffic monitoring has become a serious challenge. This study has created a system to track traffic. The proposed system utilized an ultrasonic sensor, a microprocessor, and a camera to build this device. When a vehicle crosses the road, this mechanism is actuated even when the red signal is turned on. When a vehicle attempts to pass a red light without stopping, the ultrasonic sensor detects the movement of the impediment using ultrasonic waves. Hence these ultrasonic sensor gives signals to the microcontroller. This microcontroller activates the alarm, which activates the camera to capture the image of the vehicle. This helps to obtain the data of the vehicle, which is crossed when the red light is ON. This data is collected by the camera which is along the microcontroller Hence this picture of a vehicle is saved by mentioning its date and time of crossed. As a result, this system enables to readily monitor traffic by using basic instruments.