Lane-Based AI Traffic System in Unity | First Runtime Showcase

Lane-Based AI Traffic System in Unity | First Runtime Showcase
This video showcases the current runtime progress of a Lane-Based AI Traffic System I am developing in Unity.

The system is designed around explicit lanes and lane connections, allowing vehicles to move smoothly through roads, turns, and intersections without teleporting or snapping between paths. Each lane is made up of ordered waypoints, and vehicles transition through dedicated lane-connection paths when turning or merging, resulting in natural traffic flow.

The AI vehicle controller is physics-based, using WheelColliders and a Rigidbody so vehicles react realistically to road elevation, slopes, and bumps. Steering is calculated from waypoint direction, while speed is dynamically adjusted to slow down on sharp turns.

Obstacle detection is handled through multiple forward sensors, with detection distance scaling based on vehicle speed. This allows vehicles to anticipate obstacles earlier at higher speeds instead of braking abruptly.

Traffic signals are managed through a central intersection controller, ensuring coordinated traffic light behavior where only one direction is green at a time. Vehicles respond to their assigned traffic signal and stop smoothly at defined stop points—without trigger-based hacks or global searches.

Current Features Shown:
Lane-based waypoint driving
Smooth lane connections for turns and merges
Physics-driven AI vehicle movement
Speed-aware obstacle detection & braking
Centralized traffic light control at intersections

This is an early showcase of the system’s runtime logic.
More features, optimization, and editor tooling will be added as development continues.

Developed by: Paras | Gamesoft Studio
Asset is currently in development
Feedback & suggestions are welcome


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