Operating problem

A traffic game only works when signals, queues, and turning cars behave believably and the city stays readable on a phone.

What changed

Signals run green, amber, all-red, then opposing green. Cars queue at closed junctions and grow angrier while they wait. Each city is a rotatable Three.js diorama with its own landmarks and vehicles.

System scope

• Signal-phase and traffic simulation
• Three.js city dioramas
• Campaign levels and survival scoring
• Landscape mobile packaging

Technical constraints

• Keep the traffic simulation deterministic enough to test while it grows denser and faster.
• Render sixteen distinct city dioramas, landmarks, and vehicle types inside a mobile frame budget.
• Keep signals and waiting cars readable while the player rotates the city.