本SAE信息报告描述了智能交通系统（ITS）车载数据总线的参考模型。它介绍了ITS数据总线（IDB）参考模型，并描述了IDB的总体概念。

This SAE Information Report describes a reference model for an in-vehicle data bus for Intelligent Transportation Systems (ITS). It introduces the ITS Data Bus (IDB) reference model and describes overall IDB concepts.