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 (including both full operation and temporary operation). The calculation is based on the actual length of the first line if this line has a full or partial double (or more). Not included are double tracks, station sidings, tracks under the charge of stations, branch lines, special-purpose lines and non-payable connecting lines. The length of railways in operation is an important indicator to show the development of the infrastructure of railway transport. It is also essential data to calculate volume of passenger freight transport, traffic density and utilization efficiency of locomotives and carriages.

Length of Highways　refers to the length of highways which are built in conformity with the grades specified by the highway engineering standard ［Highways WTBZ-Technical Standard JTG B01-2003］ formulated by the Ministry of Transport, 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 medium-sized cities, highways passing through streets at small cities and towns, and also the length of bridges, tunnels, ferry piers, and the checked and accepted length of the installment highways being put to use. It does not include the length of streets in big and medium-sized 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. According to the technical grade, they are divided into grade highways and off-grade highways, and grade highways include express highways, Class I, Class II, Class III and Class IV. The length of highways is an indicator to show the development of the scale of highway construction and to provide essential information to calculate the transport network density.

Length of Navigable Inland Waterways　is an indicator reflecting the size and development of inland water network. It refers to the length of the natural rivers, lakes, reservoirs, canals, and ditches open to navigation during a given period, which enables transportation by ships and rafts. It includes the channels open to navigation for over an accumulated period of 3 months in a year, yet this does not include the river courses which are only used to float odd logs and bamboo rafts. For fear of repeating calculation, the length of waterways of boundary rivers between two provinces is reckon in a half for each province. This indicator can reflect the scale, level and development situation of the inland waterway network.

Railway Passenger Traffic　refers to the volume of passenger transported with railway within a specific period of time. It is calculated by the principle that one person can be counted only once in one trip and takes no account of the ticket price and traveling distance. The free tickets for under-aged children are not calculated in. Monthly tickets and season tickets are calculated as 21 person-times per 1 month.

Turnover of Railway Passenger Traffic　refers to the summary of products of the number of passengers transported with railway trains and the distance of transportation within a specific period of time. It is calculated as:

 Turnover of Passenger Traffic (person-km)

=∑ (each passenger actually transported × distance between this passenger’s starting and arriving station)　- number of passengers actually transported × average distance of passengers transported

Railway Freight Traffic　refers to the weight of goods actually transported with railway goods trains.

Turnover of Railway Freight Traffic　refers to the summary of products of the volume of goods transported with railway goods trains and the distance of transportation within a specific period of time. The calculating formula is:

Turnover of Freight Traffic (ton-km)

 = ∑(weight of each batch of goods× distance of this batch of goods transported) -tonnage of goods actually transported × average distance of goods transported

Highway Passenger Traffic　refers to volume of passenger transported with highway transportation enterprises and other units being organized by highway transportation enterprises within a specific period of time. It is calculated by the principle that one person can be counted as “1 person” and takes no account of the traveling distance and ticket price, according to the ticket. The free tickets for under-aged children are not calculated in.

Turnover of Highway Passenger Traffic　refers to the summary of products of the number of passengers actually transported with kinds of highway conveyances and the distance of transportation within a specific period of time. It is calculated as:

Turnover of Passenger Traffic (person-km)

=∑(each passenger actually transported ×distance between this passenger’s starting and arriving station)

Highway Freight Traffic　refers to the volume of goods actually transported to destinations and completely discharged with kinds of highway conveyances within a specific period of time. To reflecting Highway Freight Traffic, there are indicators such as the tonnage of goods sending off, the tonnage of goods receiving and the tonnage of goods transporting.

Turnover of Highway Freight Traffic　refers to the summary of products of the volume of goods actually transported with kinds of highway conveyances and the distance of transportation within a specific period of time. The calculating formula is:

Turnover of Freight Traffic (ton-km)

=∑(weight of each batch of goods × distance of this batch of goods transported)

Waterway Passenger Traffic　refers to the volume of passenger transported with waterway transportation enterprises and other units being organized by highway transportation enterprises within a specific period of time.

Turnover of Waterway Passenger Traffic　refers to the summary of products of the number of passengers actually transported with waterway transportation enterprises and other units being organized by waterway transportation enterprises the distance of transportation within a specific period of time.

Waterway Freight Traffic　refers to the volume of goods actually transported with kinds of waterway conveyances within a specific period of time. It includes the freight traffic of inland rivers, seas and oceans.

Turnover of Waterway Freight Traffic　refers to the summary of products of the volume of goods actually

Volume of Freight Handled in Coastal Ports　refers to the volume of cargo passing in and out of the harbor area of the major coastal ports and having been loaded and unloaded. The volume of freight handled may be classified by direction of flow as freight for import and freight for export, or by nature of cargo as freight for domestic trade and freight for foreign trade. The volume of freight handled maybe classified by the classification of cargo, or the current transport standard of The Classification and Code of Cargo Type.

Civil Aviation Passenger Traffic　refers to the volume of passenger transported with public air transportation. An adult or child is counted as 1 person, and babies are not calculated in. One passenger in a certain flight is just counted once. The exception is that one passenger taking a fix-date flight both including domestic part and international part is calculated as 1 domestic passenger and 1 international passenger contemporarily.

Civil Aviation Freight Traffic of Goods and Posts　refers to the weight of goods and posts transported with public air transportation. The data well be calculated by the unit of tons. The goods and posts of one certain flight can be just counted once. The exception is that the goods and posts taking a fix-date flight both including domestic part and international part are calculated as 1 domestic goods and posts and 1 international goods and posts contemporarily.

Business Volume of Telecommunications　refers to the total amount of telecommunication services, expressed in value terms, provided by the telecommunications departments for society. It can be classified as: long distance telephones, rent circuitries, mobile phones, packet switching digital communication and lease and maintenance etc. This indicator reflects the overall results of development of telecommunication services in a certain period, and it is an important indicator for researching construction and development of business volume of telecommunications. The calculating formula is:

Business Volume of Telecommunications

= ∑ (various Business Volume of Telecommunications × fixed unit prices) + lease and maintenance and other business incomes

Business Volume of Post　refers to the total amount of postal services, expressed in value terms, provided by the departments for society. It can be classified as: letters, parcels, drafts, circulating presses, postal expresses, EMS, postal savings, stamp collecting etc. This indicator reflects the overall results of development of postal services in a certain period, and it is an important indicator for researching construction and development of business volume of post. The calculating formula is:

Business Volume of Post

= ∑ (various Business Volume of Post × fixed unit prices) + lease and maintenance and other business incomes