Flow-ERD: Advancing Realistic and Diverse Traffic Simulation for Autonomous Driving
Flow-ERD is a novel multi-agent traffic simulator designed to enhance both the realism and diversity of simulated traffic scenarios, crucial for autonomous driving development. It employs a two-stage approach: Agent-Type Aware Flow Matching (AFM) for diverse, type-consistent motion generation, followed by Entropy-Regularized Distillation (ERD) to prevent mode collapse and mitigate covariate shift. This method addresses the current imbalance in traffic simulation benchmarks, which often prioritize realism over diversity.