Explanatory Notes on Major Statistical Indicators


Length of Highwaysrefers to the length of highways which are built in conformity with the grades specified by the highway engineering standard formulated by the Ministry of Communications, and have been formally checked and accepted by the departments of highways and put into use. The length of highways includes that of the suburb highways at large and mediumsized cities, highways passing through streets at small cities and towns, and also the length of bridges and ferries. It does not include the length of streets in big and mediumsized cities and highways built for the production purpose at factories, mines, forest areas and agricultural areas, If two or more highways go the same section of the way, the length of the section is only calculated for once and no duplication is allowed. The length of highways is an important indicator to show the development of the highway construction and to provide essential information to calculate the transport network density.

Freight(Passenger) Trafficrefers to the volume of freight (passenger) transported with various means. Freight transport is calculated in to ns and passenger traffic is calculated in the number of persons. Despite the type of freight and traveling distance, the freight transport is calculated by the principle that one person can be counted only once in one travel. The passenger who travel with a half price ticket or a child ticket is also calculated as one person. The freight (passenger) traffic provides a quantitative measure to show how the transport industry serves the national economy and people, and is also an important indicator for planning the transport industry and for studying the development scale and speed of the transport industry.

Freight Ton-kilometers(Passenger-kilometers) refers to the sum of the products of the volume of transported cargo(passengers) multiplying by the transport distance, usually using tonkilometer and passengerkilometer as units for measurement. Normally, the shortest distance between the departure station and the destination station(i.e., the payable distance) is the basis to calculate the freight ton-kilometers. This is an important indicator to show the total results of the transport industry, to prepare and examine the transport plan and to measure the efficiency, the labor productivity and the unit cost of transport.

Volume of Freight Handledrefers to the volume of cargo passing in and out the harbor area of the major coastal ports and having been loaded and unloaded. The volume includes that of the coastal matters, registered luggage and fuels, materials and fresh water as supplies of the ships. The volume of freight dandled maybe classified as import, export, or as domestic trade and foreign trade. The volume of freight handled by type of cargo and by main flow direction reflects he position and function of the ports in the inflow of Chinese and foreign commodities and in the transportation of foreign trade.

Business Volume of Post and Telecommunicationsrefers to the total amount of the information delivered and other post and telecommunications services provided by the post and telecommunications departments for the customers. It is derived by first multiplying the business volume of different types, such as number of letters, telegrams, long distance calls, city and rural telephone subscribers and accumulated number of newspapers and journals subscribed and sold, etc. by their respective average unit price (fixed price) and then adding these products together: plus the income from maintenance of telephone exchanges and lines, and the income from other business operations. The business volume of post and telecommunications indicates the total achievements made by the post and telecommunications department during a given period of time in a comprehensive way, and is an important indicator to study the composition and development of the post and telecommunications business.