一个“喇叭”对着千万双耳朵，历来是广播传播过程中的一个基本矛盾。以前解决这个矛盾的主要办法是开办对象性节目和不同类型的专题节目。交通台和其他专业台的出现以及各地的专业台系列化布局，从频率功能分工上为解决这一矛盾提供了前提条件。交通台的服务领域非常明确，而 A “horn” facing tens of millions of pairs of ears has always been a basic contradiction in the process of broadcasting. The main solution to this contradiction in the past was to run targeted programs and different types of thematic programs. The emergence of traffic stations and other specialized stations as well as the series of professional stations around the layout, from the frequency division of labor to solve this contradiction provides the preconditions. Traffic station service area is very clear, and