ISO/TS 24530-4:2006建立了公共交通信息应用方法的XML编码。 公共交通信息应用旨在涵盖所有公共（即集体）交通方式以及城市间和城市内的出行。该应用程序本身旨在使公共交通信息能够高效、独立于语言地直接传输给最终用户（无论是公众还是其他服务提供商，如广播公司、服务运营商或其他信息传播点），或传输到中心进行转发。

ISO/TS 24530-4:2006 establishes the XML encoding of the method of the Public Transport Information application. The Public Transport Information application is intended to cover all modes of public (i.e. collective) transport as well as inter-urban and intra-urban travel. The application itself is designed to allow the efficient and language-independent transmission of public transport information either directly to an end-user, be it the public or another service provider, such as broadcasters, service operators or other information disseminating points, or to centres for onward transmission.