本文件规定了TPEG应用流量和预测（TFP）。它被专门设计为使用不同的渠道向各种接收器提供信息，首先包括数字广播和互联网技术。交通流和预测信息用于车内应用，也可以通过文本、语音和图形输出设备直接呈现给用户。 TFP以状态为导向，即传输的信息不断更新接收器对专用道路网络的知识。特别是，即使没有异常交通状况，交通状态也会在任何时间、网络的所有路段上进行传递。 通常，TFP侧重于以下要求: -为动态导航系统提供最新的交通状态信息； -确保司机的出行安全； -允许计算备选路线； -避免延误（如交通堵塞）； -降低网络过度饱和部分的流量负载； -让驾驶员了解当前和未来的交通状况； -紧凑高效的交通信息编码。

This document specifies the TPEG application Traffic Flow and Prediction (TFP). It has been specifically designed to provide information to a variety of receivers using different channels, including in the first instance digital broadcasting and Internet technologies. Traffic flow and prediction messages are intended for in-car applications and can also be presented directly to the user by textual, voice and graphical output devices. TFP is status oriented, i.e. the transmitted information continuously updates the receiver's knowledge for a dedicated road network. In particular the traffic states are delivered any time and for all road sections of the network, even when there are no abnormal traffic situations. Generally, TFP focuses on the following requirements: — provides dynamic navigation systems with up-to-date traffic state information; — ensures travel safety for the driver; — enables the calculation of alternative routes; — avoids delays (e.g. traffic jams); — lowers traffic load on over-saturated parts of the network; — keeps the driver informed about current and upcoming traffic; — compact and efficient coding of the traffic information.