City Traffic Pro

Engine Version: 5.6+

front page City Traffic Pro

By Karl

07/09/2025

A city without traffic feels empty, a world without movement feels lifeless. Creating a believable, large-scale traffic system is one of the biggest challenges in game development—a massive technical hurdle that can consume months of work. That’s why we created City Traffic Pro: your complete, flexible, and performance-optimized AI system designed to populate any Unreal Engine 5 world with realistic vehicle movement.

Create a Living, Breathing World

City Traffic Pro is engineered to simulate the complex and dynamic behavior of real-world traffic, instantly adding depth and immersion to your project.

Intelligent & Realistic AI: First and foremost, vehicles behave believably. They follow spline-based roads, change lanes, yield at intersections, honk when necessary, and navigate complex roundabouts. This creates an organic, unpredictable flow that makes your world feel truly alive.
Build Complex Road Networks with Ease: Use a powerful suite of Blueprints to construct any road network you can imagine. This includes multi-lane roads, customizable signalized intersections (with EU/US styles), all-way stops, and priority junctions.
Total Control Over Traffic Flow: You are the traffic controller. Use dedicated Blueprints to direct cars to switch lanes, merge onto highways, or follow specific paths. You can control flow with probabilities, delays, and even target specific vehicle types for ultimate fine-grained control.

Optimized for Performance & Scale

A traffic system is useless if it kills your frame rate. We designed every component of City Traffic Pro with performance as the top priority.

Intelligent Spawning for Maximum Performance: The BP_Vehicle_Manager is the heart of the system. It intelligently spawns, manages, and recycles vehicles around the player, creating the illusion of a densely populated city while keeping performance high, no matter the size of your world.
Smart Obstacle Avoidance: Vehicles use efficient line traces to detect and avoid other cars and obstacles. This system is fully configurable, allowing you to adjust AI aggressiveness and even enable advanced behaviors like attempting to drive around a blockage.
Seamless Day-Night Cycle: The included BP_Day_Night_Cycle does more than just move the sun. It automatically adjusts traffic density—thinning it out at night—and controls vehicle headlights and streetlights, creating a dynamic and immersive world with zero extra effort.

A Complete “Everything You Need” Package

This is more than just an AI system; it’s a comprehensive toolkit for building your world. The pack includes:

12 Drivable & Static Cars: Ready to use in the traffic system or as player-drivable vehicles, complete with sounds, lights, and damage effects.
Complete Blueprint Suite: All the tools you need, from road and intersection creators (BP_Road, BP_Intersection) to parking and vehicle management (BP_Parking, BP_Vehicle_Manager).
Road Creator Minimal: A starter version of the powerful Road Creator Pro to build out your demo roads and highways.
74 Road Signs & 3 Demo Cities: Get started instantly with essential props and three pre-built cities (European, American, British) that showcase the system’s full potential.