Mobile Traffic System v3

About Mobile Traffic System v3 – Unity Editor Tool & Plugin

Unity Traffic AI System and Vehicle Behavior Controller

Mobile Traffic System v3 provides a high-performance vehicle simulation framework designed to simulate dense urban roadways across mobile, desktop, and console hardware in Unity. Operating through pure raycast physics and the Unity Burst Compiler, the architecture bypasses traditional physics wheel colliders to deliver low CPU overhead while supporting complex urban road behaviors without requiring custom code.

Road Intelligence and Intersection Mechanics

The system features an autonomous navigation framework capable of managing diverse road structures and right-of-way interactions:

• Intersection Logic: Handles traffic light intersections with automated braking alongside uncontrolled priority intersections where vehicles decide whether to yield, stop, or advance.
• Complex Traffic Patterns: Controls multilane zipper merges, roundabouts where agents wait for clear gaps, and narrow single-lane roads requiring oncoming lanes to clear before passage.
• Overtaking and Lane Switching: Vehicles evaluate adjacent lanes to overtake slower traffic using the highest-speed lane, applying automated, natural lateral offsets rather than locking strictly to lane centerlines.
• Emergency Protocol and Priority: AI traffic actively detects ambulances or custom emergency vehicles, pulling over to yield the right-of-way.
• Zone and Speed Restrictions: Supports regional and lane-specific speed limits, alongside access restrictions that restrict heavy trucks to outer routes or exclude them from city centers.

Vehicle Support and Optimization Architecture

Simulation performance relies on a parallel job system driven by the Unity Burst Compiler and pure raycasts. Open-world density is managed via a grid pooling system that spawns active vehicles dynamically around the player to keep active agent counts lean across massive map footprints.

The framework accommodates diverse vehicle types ranging from three-wheel chassis to multi-segment articulated trucks with trailers. Developers can integrate custom vehicle models via automated one-click setup windows, alter driving parameters per vehicle, or bind custom logic to waypoint events when vehicles reach designated targets. The system also supplies automated vehicle lighting, basic speed-responsive engine audio, full C# source code, and integration support for third-party road creation assets such as EasyRoads3D, CiDy 2, and Road Constructor.

Use Cases

• Suitable for open-world mobile driving games needing over 300 active AI vehicles simulating city traffic on mid-range devices.
• Can support urban emergency simulators requiring autonomous civilian vehicles that pull over and clear lanes for sirens.
• Useful for freight and logistics titles utilizing articulated truck and trailer physics navigating roundabouts and narrow streets.

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