How to Build Smart Traffic Light Intersections in UE5 | Traffic System p2

Learn how to create AI traffic intersections with traffic lights in Unreal Engine 5 using Blueprints. In this UE5 tutorial, we expand the traffic system with lane-based intersections, fully customizable traffic light sequencing, and realistic vehicle acceleration and deceleration. You’ll learn how to control lane directions through intersections, define custom traffic light order (left turns, straight lanes, etc.), and build smoother, more believable AI behavior with start/stop acceleration systems. This approach works seamlessly with procedural cities, PCG road networks, and open world traffic systems. This is the next step in building a scalable UE5 traffic system, designed for dynamic intersections, realistic traffic flow, and high-performance AI vehicles — all created using Blueprints (no C++). ________________________________________________________________________ ________________________________________________________________________ Custom BP Traffic System Playlist:    • UE5 AI Traffic System Tutorial: 100% Bluep...   ________________________________________________________________________ ________________________________________________________________________ PATREON:   / procedural_minds   TWITCH:   / krozjin   TWITTER / X: https://x.com/ProceduralMinds TIKTOK:   / procedural_minds   DISCORD:   / discord   BLUESKY: https://bsky.app/profile/proceduralmi... ________________________________________________________________________ ________________________________________________________________________ 00:00 - Intro and Tutorial Demo 00:25 - Setting Up Custom Collisions 01:14 - Setting Up Roads for Testing 01:38 - Intersection Spline Setup 10:35 - Intersection Logic 25:25 - Car Intersection Detection Logic 33:13 - Car Deceleration and Acceleration