Work Introduction and Presentation:
SAiBtrafficS is a youth-led Cameroonian tech startup committed to solving eco-sustainability and
mobility challenges through cutting-edge technologies. Established in 2024, Our mission is to build clean,
smart, and inclusive technologies tailored to the realities of emerging economies like Cameroon and
Africa.
This project presents a Smart AI-based Traffic Light Control System that integrates artificial
intelligence, hardware prototyping, and simulation. The system uses an OKDo Jetson Nano as the main
controller, combined with cameras to capture real-time traffic data.
A YOLOv5 model, optimized with the MindSpore framework, is used to detect and classify
vehicles (cars, trucks, and emergency vehicles). Based on the detected vehicle density in each
lane, the system dynamically adjusts traffic signal timing, allocating longer green lights to
congested lanes and shorter ones to less busy lanes.
An emergency override feature ensures that when an ambulance or fire truck is detected, the
system automatically grants it a green signal for immediate passage.
The system is validated using the CARLA simulation environment before implementation in a physical
prototype. Additionally, it is powered by a solar energy module, allowing it to function independently of
the electrical grid, making it ideal for regions with unstable power supply
Problem to Be Solved
Traffic congestion has become a persistent and serious challenge in many urban areas of the world,
particularly in cities such as Yaoundé, Buea, and Douala. In some cases, even ambulances are forced to
stop at red lights, wasting valuable time and delaying patient treatment. This occurs because most traffic
lights operate using fixed timers that do not account for actual road conditions, leading to unnecessary
delays, fuel waste, and increased pollution.
2.2 Stakeholder and Market Analysis
3 Innovating Factor
• Traditional traffic light systems operate using fixed timing schedules that do not adapt to
real-time traffic conditions. However, traffic flow is dynamic and varies with time, location,
and environmental factors. As a result, fixed-time systems often lead to inefficiencies, such
as granting green signals to empty roads while heavily congested roads experience
unnecessary delays.
• In many cities in Cameroon, traffic congestion is a serious issue. Drivers waste time at
intersections, fuel consumption increases, and pollution worsens. Existing solutions such as
road-embedded sensors are expensive and difficult to install. Traffic officers are
overwhelmed in complex traffic situations. A more practical, affordable, and intelligent
solution is needed one that can observe and react to traffic conditions in real time. Real-time
adaptive signal control using AI-based vehicle density measurement, replacing fixed-timer
logic with a responsive decision system
• Automatic emergency vehicle detection and priority override using YOLOv5 classification,
ensuring ambulances and fire trucks are never delayed at intersections
• Integrated standalone solar power module enabling grid-independent operation a critical
feature for regions with unstable electricity supply
• On-device inference on the Jetson Nano using MindSpore Lite optimisation, ensuring low
latency and privacy-preserving local processing without cloud dependency
• Combined physical prototype and CARLA simulation validation methodology, enabling
rigorous testing before real-world deployment
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