Traffic System for Unity - Waypoint Car AI

City traffic with no navmesh. Cars follow a graph of waypoints on two-way roads, turn at crossings and slow down when a car or the player is in front of them.

Features

• One-way waypoint links set the road direction
• Cars pick a destination and find a route (BFS)
• Smooth turns and braking with an overlap check
• Spawner with car count and random colors
• Waypoint gizmo arrows in the Scene view

Demo scene controls

• WASD move, Shift run, Space jump, Mouse orbit camera
• Stand in front of a car and it slows down

What's included

• Waypoint, CarAI, CarSpawner scripts
• Low-poly car prefab
• Town demo scene with roads and crossings
• Full C# source code with comments
• README with setup steps
• Original low-poly art made by us: use it in your games, commercial too
• Nunito font (SIL Open Font License)

Requirements

• Unity 6 (6000.3) or newer
• Universal Render Pipeline (URP)
• Input System package (included in new Unity 6 projects)
• Needed tags and layers are created automatically on import

Development status

This template is still in development and gets updates. Files are versioned: download the newest one.

• v0.2.0: new art and demo scene, new UI, bug fixes, simpler code, English docs
• v0.1.0: first release

Questions or requests? Leave a comment and we'll help.