Smart Traffic Light
Campus Hong Kong Institute of Vocational Education (Tsing Yi)
Year 2023
Technologies / Project Domains Engineering
Smart Areas Smart Mobility
The Smart Traffic Light is an innovative and advanced traffic signal system that address the limitations of traditional pre-timed signals. Utilizing the power of AI-based computer vision technology, this intelligent system is capable of extracting real-time traffic information, allowing it to provide adaptive traffic signals based on the current traffic conditions.

The system calculate the vehicle queue length on traffic lanes and pedestrian flow on waiting areas to reacts instantly to optimize the flow of traffic, ensuring a smoother and more efficient journey for all road users.
Adaptive Traffic Signals: The Smart Traffic Light utilizes AI-based computer vision technology to extract real-time traffic information, and analyzes the queue length of vehicles and the flow of pedestrians at a crossroad. This information is then used to dynamically adjust the traffic signals, ensuring optimal traffic flow and minimizing congestion.

Solving Traditional Signal Problems: The Smart Traffic Light addresses two common problems of traditional pre-timed signals. It eliminates the uneven distribution of time between pedestrians and vehicles, ensuring a fair and balanced approach. Additionally, it adapts to instant traffic conditions, avoiding unnecessary delays for both pedestrians and drivers.

Idle Waiting Avoidance and Overcrowdedness Prevention: By dynamically adjusting the traffic signals based on the current traffic conditions, the Smart Traffic Light eliminates the issue of pedestrians standing idle when there are no vehicles passing through. Avoiding excessive green time when no vehicles are present and preventing insufficient green time during peak traffic periods. This improves overall efficiency and reduces waiting times.