ISmart 2 – Car traffic system

ISmart turns any city into living traffic. Physics-based AI cars drive in their lanes, slow down for curves and junctions, keep a safe distance, stop at red lights and give way at crossings – all without NavMesh and without hand-placing hundreds of waypoints.

ONE-CLICK ROAD NETWORK

Select your road models and click Generate. The Road Network Wizard scans the roads from above, finds the centre lines and junctions, and builds a complete traffic network: lanes in both directions (1–4 per direction, right- or left-hand traffic), smooth turning paths through every junction with real lane discipline, and traffic lights at crossings. No road kit required – it works with your own meshes, or with simple centre lines you draw.

DRIVES LIKE REAL TRAFFIC

• Smooth lane keeping – no corner cutting, no zig-zag

• Speed planning – brakes early and gently for curves, junctions and red lights

• Car following – keeps a speed-dependent gap and never overtakes or swerves

• Junction right of way – cars reserve their path; turning cars give way to oncoming traffic

• Traffic lights – one green approach at a time, blinking green, yellow and all-red

• Self-recovery – deadlocks, stuck and flipped cars sort themselves out

• Police cars that patrol and chase suspects

READY TO USE

• ISmart Hub editor window: setup, vehicle wizard, road wizard, paths and traffic

• Turn any car model into an AI car in one click (wheels found automatically)

• Traffic Manager with GTA mode: spawns around the player, removes far cars

• Realistic engine sound: idle, low and high layers cross-faded by RPM

• Demo HUD with vehicle count, FPS and Next Car camera switching

• Demo city scene with 9 ready-made AI vehicles

• Full English user guide (PDF) and clean, documented C# source code

Suitable for open-world, GTA-style, racing, city-builder, simulation and driving games.