本文件描述了智能交通系统（ITS）通信网络中部署的“ITS站单元”节点的通信参考体系结构。ITS站参考体系结构是以抽象的方式描述的。虽然本文件描述了许多ITS站要素，但特定要素是否在ITS站单元中实施取决于实施的具体通信要求。 本文档还描述了在其通信节点之间通过各种网络进行对等通信的各种通信模式。这些节点可以是本文档中描述的站点单元，也可以是任何其他可到达的节点。 本文件规定了基于有界安全管理域原则的ITS站物理实例化的最低规范要求。

This document describes the communications reference architecture of nodes called "ITS station units" designed for deployment in intelligent transport systems (ITS) communication networks. The ITS station reference architecture is described in an abstract manner. While this document describes a number of ITS station elements, whether or not a particular element is implemented in an ITS station unit depends on the specific communication requirements of the implementation. This document also describes the various communication modes for peer-to-peer communications over various networks between ITS communication nodes. These nodes can be ITS station units as described in this document or any other reachable nodes. This document specifies the minimum set of normative requirements for a physical instantiation of the ITS station based on the principles of a bounded secured managed domain.