TRANSPORTATION，POSTAL AND TELECOMMUNICATIONS SERVICES

Explanatory Notes on Main Statistical Indicators

Length of Railways in Operation refers to the total length of the trunk line for passenger and freight transportation in full operation or temporary operation.

Length of Highways refers to the actual length of highways at the end of reference period. It covers public roads running vehicles among cities, city and rural areas, township (villages), highways passing through streets at small cities and towns, length of bridges and tunnels, width of ferry piers. It does not include the length of streets in cities, dead end highways, the length of streets built for agricultural (forest) production and inside factories (mines). It can only be calculated with the actual mileage having been completed, checked and accepted or put into operation. If two or more highways go the same section of the way, the length of the section is only calculated for once.

Length of Navigable Inland Waterways refers to the actual length of waterways at the end of reference period that are open to navigation for ships and rafts at different water levels in the water areas of the natural rivers, lakes, reservoirs, canals, and ditches. It is calculated according to the actual length of central line of the main channels. If two provinces share one river as the border, the length of waterways will be half divided for each province..

Length of Civil Aviation Routes refers to the length of all routes for civil aviation flights, which is used to account the freight, during the period of statistics.. There are usually two ways to calculate the route length: duplicated calculation and non-duplicated calculateion, the former is the sum of length of all civil aviation routes, and the latter should deduct the duplication length of same route among all routes.

Freight (Passenger) Traffic refers to the volume of freight (passenger) transported with various means. Freight transport is calculated in tons and passenger traffic is calculated in the number of persons. Despite the type of freight and traveling distance, the freight transport is calculated in the actual weight of the goods: and despite the traveling distance and ticket price, the passenger traffic is calculated by the principle that one person can be counted only once in one travel. The passengers 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) refer to the sum of the products of the volume of transported cargo (passengers) multiplying by the transport distance. It is an important indicator to reflect the achievement of transportation industry. 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 labour productivity and the unit cost of transport. The formula is as follows:

Freight Ton-kilometers (Passenger-kilometers) =∑{Freight (Passenger) Traffic x Distance of Transportation}

Measuring unit: ton-kilometer (person-kilometer)

Business Volume of Post and Telecommunications refers to the total amount of postal services, expressed in value terms, provided by the post and telecommunications departments for society. This indicator reflects the overall results of development of postal and telecommunication services. It can be classificated as postal services and and telecommunication services. Business volume of post and telecommunications is the sum of all services in kind multiplying with the unit price (constant price) to get the total business value.

Mobile Telephone Subscribers refer to persons who have gone through registration procedures in the operation points of enterprises engaged in telecommunications and are hence connected with the mobile telephone communication network through the mobile telephone switchboards and occupy mobile phone numbers. Included are various types of subscriber, prepaid users for intelligent network and wireless network card users.

Urban Telephone Subscribers refer to the number of telephone subscribers, located at the municipalities directly under the Central Government, cities under the jurisdiction of province, cities at prefecture level, downtown and suburb of city at county level town and county towns according to the administrative division, including subscribers in rural mineral area, forest area, military area that are at or above county level.

Rural Telephone Subscribers refer to telephone subscribers, located at the towns and villages outside the coverage of urban areas according to the administrative division.

Household Telephone Subscribers refer to all kinds of subscribers with telephone sets paid privately or installed in the dwelling units of residents, and registered as private subscribers or residence subscribers for payment.