本文是研究怎样从目前采用省际与省内两级长话业务量矩阵求得全国地市局间业务量矩阵的方法。有了这一地市局间矩阵对规划省际通信网络,尤其是对那些需要用直达业务量来研究的,例如卫星地面站间电路组织等情况,将更是适用。本文不仅讨论了方法,还利用大量实际数据对不同方法进行了对比分析,给出了可能出现误差的数量范围。为建议采用“分区去话总量计算法”提供了依据。 This article is a study of how to find out the matrix of the inter-city traffic volume across the country using the inter-provincial and provincial long-distance traffic matrix. With this metropolitan-to-urban matrix, it will be more appropriate to plan interprovincial communications networks, especially those that require direct traffic, such as the circuit organization of satellite ground stations. This article not only discusses the method, but also uses a large amount of actual data to compare different methods and gives the range of the number of possible errors. Provided the basis for the proposal to adopt the method of calculating the total amount of zoned outgoing calls.