SafePath AI

“Where AI meets the road for safer intersections”

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Overview

SafePath AI is an innovative AI-powered system designed to make intersections, especially blind T-junctions, safer. It detects approaching vehicles in real time, estimates their speed, and provides color-coded LED warnings to drivers on the opposite road — giving them crucial extra seconds to react and avoid collisions. By combining artificial intelligence, embedded systems, and smart signaling, SafePath AI bridges the gap between driver awareness and road safety.

Problem

Blind intersections are one of the leading causes of road accidents, particularly where small roads merge with highways or larger roads. According to WHO, over 1.3 million people die annually in road accidents, with 25–30% of fatal crashes occurring at intersections or curves. At night or in bad weather, drivers often have zero visibility, and traditional safety tools like convex mirrors or road signs fail to provide reliable warnings. There is a growing need for a low-cost, intelligent system that can predict danger and alert drivers before they reach the collision zone.

Solution

SafePath AI uses AI-based object detection and speed estimation to analyze vehicles approaching an intersection. It employs two ESP32-CAM modules running both YOLO and SSD models, each monitoring one road at a T-intersection. Each road has an LED panel with three color-coded strips:

Green – Safe speed (vehicle approaching slowly)

Yellow – Moderate speed (proceed with caution)

Red – High speed (danger – wait)

When a vehicle’s speed crosses a threshold, the system lights up the LED panel on the opposite road, warning the other driver in advance. This real-time, automatic alert reduces human error and prevents T-bone accidents.

How It Works

Two ESP32-CAM modules capture live video at a T-intersection.

YOLO and SSD AI models process frames to detect moving vehicles.

The system tracks object movement frame-to-frame to calculate vehicle speed.

Based on the speed, the opposite LED panel glows red, yellow, or green.

The system’s collision detection module can also notify police or hospitals in case of impact.

All image processing and alert control occur in real time through a connected server or local microcontroller, ensuring instant response.

Features

Real-time vehicle detection and speed tracking

Smart LED warning system (Red, Yellow, Green)

Collision detection with emergency alerts

Works day and night, even in fog or rain

Low-cost (₹1,630 prototype) and easy to install

Compatible with solar power and scalable to more intersections

Feasibility

SafePath AI is simple, practical, and scalable. It needs minimal infrastructure and can integrate with existing traffic systems. Its low power requirement and affordable hardware make it suitable for both urban and rural roads. The system’s modular design allows for quick deployment and future upgrades, including cloud analytics or V2X communication.

Innovation

Unlike conventional convex mirrors that depend on visibility, SafePath AI actively “sees” and “thinks.” It detects, analyzes, and alerts drivers automatically, independent of human attention or lighting. This proactive, AI-driven mechanism transforms intersections into intelligent safety zones.

Impact

By providing real-time, context-aware alerts, SafePath AI can drastically reduce T-bone collisions at blind intersections. Its affordability and adaptability make it an ideal solution for developing countries like India, where low-cost, high-impact innovations can save thousands of lives every year.

Target Audience Each and every citizen who walks on road.....

Built With

  • ai
  • api
  • iot
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