LimSim Series: An Autonomous Driving Simulation Platform for Validation and Enhancement

TL;DR

The LimSim Series is a versatile simulation platform for autonomous driving systems that balances accuracy, efficiency, and comprehensive evaluation, aiding rapid development and validation of ADS.

Contribution

It introduces a new simulation platform with multi-type data integration, human-like decision algorithms, and the AoI concept for optimized resource use, supporting flexible ADS validation.

Findings

Compatible with modular, end-to-end, and VLM-based systems

Facilitates rapid iteration and performance evaluation across scenarios

Provides multi-dimensional metrics for thorough system insights

Abstract

Closed-loop simulation environments play a crucial role in the validation and enhancement of autonomous driving systems (ADS). However, certain challenges warrant significant attention, including balancing simulation accuracy with duration, reconciling functionality with practicality, and establishing comprehensive evaluation mechanisms. This paper addresses these challenges by introducing the LimSim Series, a comprehensive simulation platform designed to support the rapid deployment and efficient iteration of ADS. The LimSim Series integrates multi-type information from road networks, employs human-like decision-making and planning algorithms for background vehicles, and introduces the concept of the Area of Interest (AoI) to optimize computational resources. The platform offers a variety of baseline algorithms and user-friendly interfaces, facilitating flexible validation of multiple technical pipelines. Additionally, the LimSim Series incorporates multi-dimensional evaluation metrics, delivering thorough insights into system performance, thus enabling researchers to promptly identify issues for further improvements. Experiments demonstrate that the LimSim Series is compatible with modular, end-to-end, and VLM-based knowledge-driven systems. It can assist in the iteration and updating of ADS by evaluating performance across various scenarios. The code of the LimSim Series is released at: https://github.com/PJLab-ADG/LimSim.