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。该指标可以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。

公路通车里程　指在一定时期内实际达到《公路工程技术标准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。该指标可以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。该指标可以反映内河水运网的规模、水平和发展情况。

民用航空航线里程　指民航运输定期班机飞行的航线长度的总和。航线长度按机场之间的距离计算，通常有两种计算方法：一是将每条航线长度相加称为重复计算航线里程；一是将两线或两条以上航线经过同一区段里程，只计算一次航线长度称为不重复计算航线里程。一般常用的是后者，该指标可以确切反映民航运输网的规模，是表明民航事业为国民经济服务和方便人民生活程度的主要指标。

输油(气)管道里程　指油品(或天然气)的实际输送距离，一般按输油(气)管道的单线长度计算。若包括复线和备用线长度则称为输油(气)管道延展长度，是指管道铺设的实际长度。我们通常使用的是不包括复线的“输油(气)管道里程”，该指标可以反映管道运输的发展规模和水平。

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。该指标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。该指标可以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(旅客)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）

港口货物吞吐量　指经水运进出港区范围，并经过装卸的货物数量，包括邮件及办理托运手续的行李、包裹以及补给运输船舶的燃料、物料和淡水。货物吞吐量按货物流向分为进口、出口吞吐量，按货物交流性质分为外贸货物吞吐量和国内贸易货物吞吐量。货物吞吐量的货类构成及其流向，是衡量港口生产能力大小的重要指标。

港口集装箱吞吐量　指用集装箱装载货物、按箱数表示的港口货物吞吐量。计量单位为国际标准箱（TEU）。将各种不同规格尺寸的集装箱自然箱数，按换算比例折合成TUE（TWENTY　FT　EQUAL　TO　UNIT的缩写）统计，即折合成20英尺标准箱统计，换算比例为：40英尺箱为1:2，35英尺箱为1:1.75，20英尺箱为1:1，10英尺箱为1:0.5。

民用汽车　指报告期末，在公安交通管理部门按照《机动车注册登记工作规范》，已注册登记领有民用车辆牌照的全部汽车数量。汽车统计的主要分类：根据汽车结构分为载客汽车、载货汽车及其他汽车；根据汽车所有者不同分为个人(私人)汽车、单位汽车；根据汽车的使用性质分为营运汽车、非营运汽车；根据汽车大小规格不同载客汽车分为大型、中型、小型和微型，载货汽车分为重型、中型、轻型和微型。

机动船　又称自航船，指装有各种发动机推进装置，以机械动力行驶的船舶。

驳船　指本身无动力装置，或只设简易动力装置，依靠拖船或推船带动的平底船。

船舶净载重量　 指报告期末所拥有船舶的总载重量减去燃（物）料、淡水、粮食及供应品、人员及其行李等的重量及船舶常数后，能够装载货物的实际重量。

沿海港口　指位于海沿岸，具有一定设施和条件，供船舶停靠、旅客上下、货物装卸、生活物料供应等作业的港口。

内河港口　指位于江、河、湖沿岸，具有一定设施和条件，供船舶停靠、旅客上下、货物装卸、生活物料供应等作业的港口。

民用航空航线条数　民用航空航线指出于商业的目的，运输飞机从地球表面一点(起飞)飞到另一点(终点)的航行线路。应同时具备三个条件：一是有运输飞机定期飞行，二是有足以保证运输飞机飞行和起降所需要的机场及地面设施，三是经过批准并在一个航季中正常执行。计算条数时，来回程计为一条。分为国内航线、国际航线和地区航线。

民航运输飞机　从事公共航空运输的民用飞机。分为大中型飞机和小型飞机，大中型飞机指100座及以上的运输飞机，小型飞机指100座以下的运输飞机。

城市公共交通　指城市中供公众乘用的、经济方便的各种交通方式的总称。包括公共汽车、电车、轨道交通（地铁、轻轨、有轨电车、磁悬浮、索道、缆车等）、出租汽车、公共轮渡等客运交通设施。

运营线路网长度　指公共交通线路所通过的运营线路净长度。计算公式：运营线路网长度=运营线路总长度－∑重复的线路长度

运营线路总长度　指全部运营线路长度之和。计算公式：运营线路长度=∑各条运营线路长度=∑〔1/2（上行起点至终点里程+下行起点至终点里程+上下行终点掉头里程〕。单向行驶的环行线路长度等于起点至终点里程与终点下客站至起点里程之和的一半，不包括折返、试车、联络线等非运营线路。

运营车辆数　指城市中用于公共交通运营业务的全部车辆数。地铁和轻轨在统计时一自然节为一辆。出租汽车指已经领取出租汽车专用牌照的运营车辆，包括技术完好的、在修的、长期行驶的以及拟报废尚未经上级机关批准的车辆。

轮渡运营船舶数　指用于城市客渡运营业务的全部船舶数。不含旅游客轮（长途旅游、市内供游人游览江、河、湖泊的船只）。

城市公共交通客运总量　指报告期内城市公共交通各种运输方式运送乘客的总人次。

邮电业务总量　指以价值量形式表现的邮电通信企业为社会提供各类邮电通信服务的总数量。邮电业务量按专业分类包括函件、包件、汇票、报刊发行、邮政快件、特快专递、邮政储蓄、集邮、公众电报、用户电报、传真、长途电话、出租电路、无线寻呼、移动电话、分组交换数据通信、出租代维等。计算方法为各类产品乘以相应的平均单价(不变价)之和，再加上出租电路和设备、代用户维护电话交换机和线路等的服务收入。该指标综合反映了一定时期邮电业务发展的总成果，是研究邮电业务量构成和发展趋势的重要指标。计算公式为：

邮电业务总量=∑（各类邮电业务量×不变单价）+出租代维及其他业务收入
=邮政业务总量+通信业务总量

移动电话用户　指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。包括签约用户和智能网预付费用户。一个移动电话号码统计为一户。

本地电话用户　指接入本地电信运营商固定电话网上的电话用户。包括：住宅用户、单位用户、公用电话用户等。

国际互联网用户　包括互联网窄带拨号用户和互联网宽带接入用户。互联网窄带拨号用户又分为互联网注册拨号用户、互联网主叫电话记费用户、互联网上网卡用户等几种。互联网注册拨号用户指由基础电信运营商用户提供的，使用固定帐号上网的一种方式，由用户到运营商的营业厅或业务代理商处申请办理，获得拨号上网帐号及密码，用户根据该帐号及密码拨叫上网特服号，通过认证获得动态IP地址接入宽带互联网。互联网主叫电话记费用户指用户不需要到运营商的营业厅或业务代理商处申请办理，只需要拨打某一运营商已经开通的主叫特服号码即可上网，上网费用随主叫电话收取。互联网上网卡用户指使用上网卡上的帐号和密码认证，通过PSTN、N-ISDN等方式接入宽带互联网的用户。互联网宽带接入用户指采用分组 交换网、DDN网、帧中继/ATM网以及模拟专线、数字专线等方式，不经过基础电信运营商的宽带IP城域网，直接接入宽带互联网节点的用户，不含XDSL、专线和LAN专线用户。

移动电话交换机容量　指移动电话交换机根据一定话务模型和交换机处理能力计算出来的最大同时服务用户的数量。

Length of Railways in Operation　refers to the total length of the trunk line under passenger and freight transportation (including both regular operations and temporary operations). In the case of wholly or partially double or multiple track railways, calculation is based on the actual length of the first track, regardless of other 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 of the development of infrastructure for railway transport, as well as the foundation for the calculation of passenger-kilometers and freight ton-kilometers, traffic density and utilization efficiency of locomotives and carriages.

Length of Highways　refers to the length of highways built in conformity with the grades specified by the Technical Standards JTJ01-88 for Highway Engineering, formally checked and accepted by highway authorities and put into use. The length of highways includes that of suburban highways at large and medium sized cities and highways passing through streets at small cities and towns, as well as the span of bridges and ferries. However, it does not include the length of streets in large and medium sized cities and highways built for production purposes at factories, mines, forest areas and agricultural areas. If two or more highways share the same segment, the length of the shared segment is only calculated for once and no duplication is allowed. The length of highways is an important indicator of the scale of development of highway construction, as well as the foundation for the calculation of transport network density and other indicators.

Length of Navigable Inland Waterways　refers to the length of natural rivers, lakes, reservoirs, canals, and ditches open to navigation during a given period, which enables the transport by ships and rafts. This includes channels open to seasonal navigation for an accumulative period of over 3 months in a year, but excludes river courses used exclusively for wood or bamboo rafts on an irregular basis. This indicator reflects the scale, level and development situation of the inland waterway network.

Length of Civil Aviation Routes　refers to the length of all routes for regular civil aviation flights. Calculation of route lengths is based on the distance between airports, usually in either of the following ways: duplicated calculation of route lengths, which directly sums up the length of every single air route, or singular calculation of route lengths, which calculates the same segments of aviation routes shared by two or more routes only once. In general practice, the latter is used, as it can precisely reflect the size of the civil aviation network and indicate the extent to which civil aviation serves the national economy and the needs of the people.

Length of Petroleum and Gas Pipelines refers to the actual transport distance of oil or gas products, generally calculated as the length of single pipelines. Inclusion of double pipelines and alternate pipeline in the calculation is termed the extension length of petroleum and gas pipelines, which indicates the actual length of the pipelines built. In general practice, the “Length of Petroleum and Gas Pipelines” exclusive of double pipelines is used, which reflects the scale and degree of development in pipeline transport.

Freight (Passenger) Traffic　refers to the volume of freight (passengers) transported with various means. This indicator provides a quantitative measure of how the transport industry serves the national economy and the needs of the people, as well as an important reference for drafting and checking production plans in the transport industry and for studying the scale and speed of development in the transport industry. Freight transport is calculated in tons and passenger traffic is calculated in the number of persons. Freight transport is calculated in the actual weight of goods regardless of traveling distances and types of freight, while passenger traffic is calculated as the number of individuals traveling once, regardless of traveling distances, ticket prices, whether the passengers are traveling with half-price tickets or child tickets.

Freight Ton-kilometers (Passenger-kilometers)　refer to the sum of the products of the volume of transported cargo (passengers) multiplied by the transport distance. These are important indicators of the total achievements of the transport industry, as well as the major foundation for drafting and checking production plans in the transport industry and for calculating the efficiency, labor productivity and the cost of transport enterprises. 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 and passenger-kilometers on. These indicators are calculated as follows:

Freight Ton-kilometers (Passenger-kilometers) = ∑(Freight (Passenger) Traffic ×Transport Distance)

Volume of Freight Handled in Ports　refers to the volume of cargo passing in and out of the harbor area that undergoes the loading and unloading processes, including mails, checked baggage and bales, as well as fuel, material and fresh water supplies to ships. The volume of freight handled may be classified by direction of flow as import volume and export volume, or by nature of cargo as volume of freight for domestic trade and volume of freight for foreign trade. The classification of volume of freight handled and its direction of flow are important indicators of the production capacity of ports.

Volume of Container Handled in Ports　refers to the volume of freight handled in Ports that are loaded and unloaded in containers.The unit of measurement is TEU. The number of natural containers of various sizes of containers is converted into TEU (TWENTY FT EQUAL TO UNIT) according to the conversion ratio, that is to say, the conversion ratio is 1:2 for 40 foot container, 1:1.75 for 35 foot container, 1:1 for 20 foot container, and 1:0.5 for 10 foot container.

Possession of Civil Motor Vehicles　refers to the total number of vehicles that are registered at transport management offices under the public security authorities and provided with civil vehicle licenses and tags according to the Work Standard for Motor Vehicles Registration at the end of the reference period. Major categories of vehicle are: passenger vehicles, freight vehicles and other vehicles in terms of structure; private vehicles and organization-owned vehicles in terms of ownership; commercial vehicles and non-commercial vehicles in terms of use; large, medium, small and mini passenger vehicles, and heavy, medium, light and mini trucks in terms of size.

Motor Vessels　refer to vessels installed with power units and propelled by mechanical power. It is also known as self-propelled vessels.

Barges　refer to flat-bottomed vessels driven by drawers or propellers. It has no power units or has only simple power units.

Dead Weight Tonnage of Vessels　refers to the actual tonnage all the vessels within the reference period are capable of carrying. It equals the tonnage of all the vessels minus that of fuel, material and fresh water, foods, supplies, persons and luggage on vessels.

Coastal Seaports　refer to seaports located alongside the coasts that have the right facilities and conditions for vessel mooning, passenger boarding and alighting, cargo loading and unloading, and supply of daily life materials.　

Inland Ports　refer to ports located along rivers and lakes that have the right facilities and conditions for vessel mooning, passenger boarding and alighting, cargo loading and unloading, and supply of daily life materials.

Number of Civil Aviation Routes　refers to the number of all routes of commercial civil aviation flights from one point of the earth to another. Civil aviation routes shall meet three conditions. Firstly, there shall be regular flights. Secondly, there shall be adequate airport and ground facilities to ensure the flight, takeoff and landing. Thirdly, the flights are approved and carried out normally during the flight season. Singular calculation is used in calculating the number of routes. Civil aviation routes are divided into domestic routes, international routes and regional routes.

Civil Aviation Aircraft　refer to aircraft used in public civil aero transport. They are divided into large and medium sized aircraft and small sized aircraft. The former refer to those with 100 seats and above, and the latter refer to those with less than 100 seats.

Urban Public Transportation　refers to all the economical transport taken by the public in cities. It includes bus, trolley bus, rail transport (subway, light rail, streetcar, magnetically levitated trains, cableway, telpher, etc.), taxi, ferry boast, etc.

Length of Public Transportation Network　refers to the net length covered by the public transportation routes. The following formula is used:

Length of Public Transportation Network=Length of Public Transportation under Operation - ∑Length of Repeated Routes

Length of Public Transportation under Operation　refers to the sum of all public transportation routes under operation. The following formula is used:

Length of Public Transportation under Operation= -∑(1/2 (length from starting station to terminal of forward trip+length from terminal to beginning station of backward trip+length of take-turning of both trips)

Number of Vehicles under Operation　refers to the total number of vehicles under operation in public transportation in cities. For subway and light rail, each compartment is calculated as one unit. Taxi refers to all those with special operation license, including those in good condition, under maintenance, in long-term operation and with pending approval for writing-off.

Number of Ferry Boats　refer to the total number of boats for ferry operation., excluding the long-distance　or intra-city cruiser.

Total Passenger Traffic in Cities　refers to the total number of persons transported by public transportation in cities.

Business Volume of Postal and Telecommunication Services　refers to the total amount of postal and telecommunication services, expressed in value terms, provided by postal and telecommunication enterprises for the society. Postal and telecommunication services can be classified as letters, parcels, remittance, delivery of newspapers and magazines, fast mail service, express mail service, savings deposits, stamps for collection, public and individual telegraph service, facsimiles, long-distance telephone service, leasing of telephone lines, urban paging service, mobile telephone service, data communication through packet networks, network elements lease and maintenance, etc. To calculate the volume, the business volume of each product is multiplied by its average unit price (at constant prices), summed, and added to income from other services such as leasing of telephone lines and equipment, maintenance of telephone switchboards and lines on behalf of customers. This indicator reflects the overall achievements of postal and telecommunication services during a given period, and is an important reference for studying the composition of business volume and the development trend of postal and telecommunication services. This volume is calculated as follows:

Business Volume of Postal and Telecommunication Services = ∑(Business Volume of Each Product×Constant Unit Price) + Income from Leasing, Maintenance, and Other Services = Business Volume of Postal Services + Business Volume of Telecommunication Services

Mobile Telephone Subscribers　refer to persons who own mobile telephone numbers and are connected with the mobile telephone communication network through mobile telephone switchboards, including contracted subscribers and pre-paid subscribers for intelligent network. One mobile telephone number is calculated as one subscriber.

Local Telephone Subscribers　refer to subscribers that are connected to the local telecommunication service provider through fix line network, including household subscribers, institutional subscribers and public telephones.

Number of Internet Subscribers　 include both narrow-band dial-up users and broad-band access users of the internet. Narrow-band dial-up users are further classified into registered dial-up users, pay-per-calling users, and pre-pay card users. Registered dial-up service enables internet access through fixed accounts provided by basic telecommunication operators. Users of this service apply to the operators or their agents for accounts and passwords, with which they dial special numbers for internet connection and acquire dynamic IP addresses through authentification to gain access to the broad-band internet. Pre-pay calling service implies that instead of applying to the operators or their agents, users only need to dial a certain operator’s special numbers to gain access to the internet and pay internet fees together with their calling fees. Pre-pay card users refer to those connected to the broad-band internet through PSTN and N-ISDN networks with accounts and passwords provided by the pre-pay cards. Broad-band access users (exclusive of XDSL and LAN users) refer to users directly connected to broad-band internet nodes through packet networks, DDN networks, frame relay/ATM networks, and special analog or digital lines, bypassing the broad-band IP MAN provided by basic telecommunication operators.

Capacity of Mobile Telephone Exchanges　refers to the maximum number of subscribers that can be served simultaneously, calculated according to a certain calling model and the handling capacity of the mobile telephone exchanges.