本SAE标准规定了路侧安全应用的消息集要求，包括详细的系统工程文件（映射到适当数据交换的需求和要求）。应用包括:弯道速度警告（CSW）减速区警告（RSZW）车道关闭警告（LCW）动态出行信息（DTI）事件信息（INC）本文件定义了新的道路安全信息（RSM）以及其他标准（包括SAE标准和国家ITS体系结构）中定义的基础设施与车辆通信能力的使用。这并不是为基础设施系统定义一个单一的通用广播应用程序，而是一个支持上述应用程序的消息集和结构。新消息及其结构使其他应用程序能够向本文定义的通用框架添加新材料。 这允许在未来进一步开发和部署具有新消息内容的新应用程序。本文档的目的是使用I2V通信实现路边安全应用程序的互操作性，尽管它与V2V和V2X的使用是预期的，但并不排除。

This SAE Standard specifies message set requirements for roadside safety applications, including detailed systems engineering documentation (needs and requirements mapped to appropriate data exchanges). The applications include:Curve speed warning (CSW)Reduced speed zone warning (RSZW)Lane closure warning (LCW)Dynamic traveler information (DTI)Incident information (INC)This document defines a new road safety message (RSM) and the use of infrastructure-to-vehicle communications capabilities defined in other standards, including SAE Standards, and the National ITS Architecture. This does not define a single, generic, broadcast application for infrastructure systems, but a message set and structures to support the above listed applications.The new message and its structure enable additional applications to add new material to the common framework that is defined herein. This allows further development and deployment of new applications with new message content in the future.The purpose of this document is to enable roadside safety application interoperability using I2V communications, although its use with V2V and V2X is anticipated and not precluded.