主要统计指标解释
铁路营业里程 又称营业长度(包括正式营业和临时营业里程)，指办理客货运输业务的铁路正线总长度。凡是全线或部分建成双线及以上的线路，以第一线的实际长度计算；复线、站线、段管线、岔线和特殊用途线以及不计算运费的联络线都不计算营业里程。该指标反映铁路运输业基础设施的发展水平，也是计算客货周转量、运输密度和机车车辆运用效率等指标的基础资料。
公路里程 指在一定时期内实际达到《公路工程[WTBZ]技术标准JTJ01-88》规定的等级公路，并经公路主管部门正式验收交付使用的公路里程数。包括大中城市的郊区公路以及通过小城镇街道部分的公路里程和桥梁、渡口的长度，不包括大中城市的街道、厂矿、林区生产用道和农业生产用道的里程。两条或多条公路共同经由同一路段，只计算一次，不得重复计算里程长度。该指标反映公路建设的发展规模，也是计算运输网密度等指标的基础资料。
内河航道里程 也称内河通航里程，指在一定时期内，能通航运输船舶及排筏的天然河流、湖泊水库、运河及通航渠道的长度。包括全年季节性通航累计三个月以上的航道，不包括仅供零散流放竹、木排的河道。该指标反映内河水运网规模、水平和发展情况。
民用航空航线里程 指统计期间内全部民用航空航线的航线总长度。航线长度指民用航空航线的计费距离。计算航线里程可按重复和不重复两种方法，前者是指各航线长度相加的总和；后者则要扣除各航线之间相同航段重复计算的部分。
货(客)运量 指在一定时期内，各种运输工具实际运送的货物(旅客)数量。它是反映运输业为国民经济和人民生活服务的数量指标，也是制定和检查运输生产计划、研究运输发展规模和速度的重要指标。货运按吨计算，客运按人计算。货物不论运输距离长短、货物类别，均按实际重量统计。旅客不论行程远近或票价多少，均按一人一次客运量统计；半价票、小孩票也按一人统计。
货物(旅客)周转量 指在一定时期内，由各种运输工具运送的货物(旅客)数量与其相应运输距离的乘积之总和。该指标反
映运输业生产的总成果，也是编制和检查运输生产计划，计算运输效率、劳动生产率以及核算运输单位成本的主要基础资料。计算货物周转量通常按发出站与到达站之间的最短距离，也就是计费距离计算。计算公式为：
货物(旅客)周转量=∑〔货物(旅客)运输量×运输距离〕
邮电业务总量 指以货币形式表示的邮电企业为社会提供各类邮电服务的总数量，是用于观察邮电业务发展变化总趋势的综合性总量指标。分别按邮政业务总量和电信业务总量统计。邮电业务总量是以各类业务的实物量分别乘以相应的不变单价，得出各类业务的货币量再加总求得。
移动电话用户 指在电信运营企业营业网点办理开户登记手续，通过移动电话交换机进入移动电话网，占用移动电话号码的各类电话用户。包括GSM数字移动电话用户、CDMA数字移动电话用户和电信运营企业发行的报告期末已激活充值的能异地漫游的各种智能卡用户。
城市电话用户 指直辖市、省辖市、地级市、县级市的市区、市郊区及县城范围内接入局用交换机的电话用户。包括分布在农村地区县团级以上建制的独立工矿区、林区、驻军等电话用户。
农村电话用户 指县城关区以下的集镇和农村接入局用交换机的电话用户。
住宅电话用户 是指安装在居民住宅或农民家里并按照住宅电话用户登记注册和收费的电话用户。包括私人付费、单位付费和按规定免费安装的住宅电话用户。
Explanatory Notes on Main Statistical Indicators
Length of Railways in Operation refers to the total length of the trunk line under passenger and freight transportation (including both full operation and temporary operation). The calculation is based on the actual length of the first line even if this line has a full or partial double track or more tracks, excluding double tracks, station sidings, tracks under the charge of stations, branch lines, special-purpose lines and the non-payable connecting lines. The length of railways in operation is an important indicator to show the development of the infrastructure for the railway transport, and also the essential data to calculate volume of passenger freight transport, traffic density and utilization efficiency of the 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 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 medium-sized 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 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. 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.
Length of Navigable Inland Waterways it 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 the transport by ships and rafts. It includes the channels open to navigation for over an accumulative 3 months in a year, yet this does not include the river courses, which are only used to float odd logs and bamboo rafts. This indicator can reflect the scale, level and development situation of the inland waterway network.
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 and telecommunication 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 GSM digital mobile phone subscribers, CDMA digital mobile phone subscribers and subscribers to intelligent phone cards with roaming facility issued by telecommunications enterprises and which have been subscribed to and activated at the end of the reference period.
Urban Telephone Subscribers refer to the number of telephone subscribers, located at the different administrative districts of 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, that are connected to the public line telephone network, including rural mineral area, forest area, military area.
Rural Telephone Subscribers refer to telephone subscribers, located at the towns below the level of county town and villages, that are connected to the public line telephone network.
Household Telephone Subscribers refer to telephone sets installed in the dwelling units of urban or rural residents, and registered as residence subscribers for payment, including 3 types of payment for the service: private payment, public payment and free service.