【道路长度】指供各种车辆（无轨）和行人通行的工程设施的道路长度和与道路相通的桥梁、隧道的长度，按车行道中心线计算。按使用特点分为城市道路、公路、厂矿道路、林区道路及乡村道路等。

【城市道路】指城市中供车辆、行人通行的，有交通功能的各种铺装道路和土路，分快速路、主干路、次干路和支路及以下四个等级，道路长度一般使用报告期期末数据。

【快速路】城市道路中双向行车道、设有中央分隔带，具有四条以上的车道，进出口全部或部分采用立体交叉控制有平顺的线形与一般道路分开，使汽车能以较高的速度安全畅通地行驶，为城市中大量、长距离和快速交通服务。

【主干路】在城市道路网中起骨架作用的道路，是连接城市各主要分区的交通干道，是城市内部的主要大动脉。

【道路面积】指道路面积和与道路相通的广场、桥梁、隧道的面积。

【桥梁】指为跨越天然或人工障碍物而修建的构筑物。包括跨河桥、立交桥、人行天桥以及人行地下通道等。按使用年限分为永久性桥和半永久性桥。

【立交桥】指由桥梁或匝道所构成的实现供机动车行驶的道路之间立体交叉的交通体系。一般情况下立交桥系包含多个桥梁和匝道；位于立交桥系内的桥梁均为属于立交桥系的桥梁。

【排水管道长度】 指所有排水总管、干管、支管、检查井及连接井进出口等长度之和。 

【污水处理厂】指对进入城镇污水收集系统的污水进行净化处理的污水处理厂。包括城镇污水处理厂、工业废水集中处理厂和其他污水处理设施，不包括渗水井、化粪池（含改良化粪池）和污水处理装置。

【污水处理能力】指全市污水处理厂（或处理装置）的日处理污水能力。

【污水处理量】指污水处理厂（或污水处理装置）实际处理的污水量。包括物理处理量、生物处理量和化学处理量。

【污水处理率】指报告期内通过污水处理厂处理的城乡生活污水、工业废水量占污水排放量的比重，是反映地区污水处理能力的约束性指标。

【供水综合生产能力】指按供水设施取水、净化、送水、出厂输水干管等环节设计能力计算的综合生产能力。包括在原设计能力的基础上，经挖、革、改增加的生产能力。计算时，以四个环节中最薄弱的环节为主确定能力。

【供水管道长度】指从送水泵至用户水表之间所有管道的长度。不包括新安装尚未使用、水厂内以及用户建筑物内的管道。

【供水总量】指报告期供水企业（单位）供出的全部水量，包括有效供水量和漏损水量。有效供水量指水厂将水供出厂外后，各类用户实际使用到的水量，包括售水量和免费供水量。漏损水量指在供水过程中由于管道及附属设施破损而造成的漏水量、失窃水量以及水表失灵少计算的水量。

【售水量】指报告期供水企业(单位)收费供应的水量，售水量包括外地售水量和本地售水量。外地售水量指销往本区域外的售水量。统计时，仅对本地售水量进行分类统计。包括居民生活用水，行政事业用水、工业用水、经营服务用水、特种行业用水（以水为主要原料制造业、特种服务用水）、其他用水等，不包括销往本区域外的售水量。计算公式：

售水总量＝生产运营用水+公共服务用水+居民家庭用水+消防及其他用水。

【生产运营用水】指在城市范围内生产、运营的农、林、牧、渔业、工业、建筑业、交通运输业等单位在生产、运营过程中的用水。

【公共服务用水】指为城市社会公共生活服务的用水。包括行政事业单位、部队营区和公共设施服务、社会服务业、批发零售贸易业、旅馆饮食业以及社会服务业等单位的用水。

【居民家庭用水】指城市范围内所有居民家庭的日常生活用水。包括城市居民、农民家庭、公共供水站用水。

【用水普及率】指报告期末城区用水人口数与城市人口总数的比率。计算公式：

【天然气供气总量】 指报告期燃气企业（单位）向用户供应的天然气数量，包括销售量和损失量。

【绿化覆盖面积】指城市中乔木、灌木、草坪等所有植被的垂直投影面积包括公园绿地、防护绿地、广场用地、附属绿地、其他绿地的绿化种植覆盖面积，不含各类绿地中的水域面积以及没有被植被覆盖的面积（硬化道路、无屋顶绿化的建筑物等）。乔木树冠下重叠的灌木和草本植物不能重复计算。

【绿地面积】指报告期末作为园林和绿化的各类绿地面积。包括公园绿地、防护绿地的面积。

【建成区绿化覆盖率】城市中各类绿地的绿色植物覆盖总面积占建城区面积的百分比，是衡量一个城市绿化现状和生态环境效益的重要指标。计算公式：

城市绿化覆盖率（%）=（城市内全部绿化种植垂直投影面积城市总用地面积占比）x100%

以上公式不包含乔木下的灌木投影面积、草坪面积。

【公园】是指供公众游览、观赏、休憩、开展科学文化及锻炼身体等活动，有较完善的设施和良好的绿化环境，具有改善城市生态、防火避难等综合作用的公共场地。包括综合公园、社区公园、专类公园、带状公园和街旁绿地等。

【公园绿地面积】指城市中向公众开放的、以游憩为主要功能，有一定的游憩设施和服务设施，同时兼有健全生态、美化景观、防灾减灾等综合作用的绿化用地面积的总和。包括：综合公园、社区公园、专类公园和街旁绿地。其中综合公园、专类公园和带状公园等面积之和为公园面积。

【人均公园绿地面积】是指城镇公园绿地面积的人均占有量（人均指标按照年末常住人口计算）。是评价城市园林绿化水平、反映宜居环境品质的约束性指标。

【建成区面积】是指城市行政区内实际已成片开发建设、市政公用设施和公共设施基本具备的区域。对核心城市，它包括集中连片的部分以及分散的若干个已经成片建设起来，市政公用设施和公共设施基本具备的区域；对一城多镇来说，它包括由几个连片开发建设起来的，市政公用设施和公共设施基本具备的地区组成。因此建成区范围，一般是指建成区外轮廓线所能包括的地区，也就是这个城市实际用地所达到的范围。

【道路清扫保洁面积】指报告期末对城市道路和公共场所（主要包括城市行车道、人行道、车行隧道、人行过街地下通道、道路附属绿地、地铁站、高架路、人行过街天桥、立交桥、广场、停车场及其他设施等）进行清扫保洁的面积。一天清扫保洁多次的，按清扫保洁面积最大的一次计算。 

【生活垃圾清运量】指在生活垃圾产量中能够被清运至垃圾消纳场所或转运场所的量，生活垃圾清运量受生活垃圾产生量、垃圾回收比率、清运率等影响。不包括在源头便进入回收系统的废弃物。

【生活垃圾无害化处理量】指报告期内简易处理场和各种垃圾无害化处理场（厂）处理垃圾的总量。垃圾简易处理量指垃圾简易填埋场所处理的垃圾总量。垃圾无害化处理量指垃圾无害化处理场（厂）所处理的垃圾总量。

【城镇生活垃圾无害化处理率】 指报告期生活垃圾无害化处理量与生活垃圾产生量比率。在统计上，由于生活垃圾产生量不易取得，可用清运量代替。计算公式为：

【市容环卫专用车辆设备】指用于环境卫生作业、监察的专用车辆和设备，包括用于道路清扫、冲洗、洒水、除雪、垃圾粪便清运、市容监察以及与其配套使用的车辆和设备。

【Length of Roads】refers to the length of the road used for the passage of various vehicles (trackless) and pedestrian engineering facilities and the length of the bridge and tunnel connected with the road, which is calculated according to the center line of the vehicle lane. According to the characteristics of urban road, road, factory road, forest road and rural road.

【Urban Road】refers to all kinds of paved roads and dirt roads with traffic functions for vehicles and pedestrians in the city, which can be divided into four levels: express road, main road, secondary road and branch road and below. The length of road generally uses the data at the end of the reporting period.

【Expressway】In the city road, two-way lane, with a central partition belt, with more than four lanes, all or part of the import and export of three-dimensional crossover control with smooth line shape and the general road separated, so that cars can run at a high speed safe and smooth, for large number of urban, long-distance and rapid traffic service.

【Trunk Road】The road that plays the role of skeleton in the urban road network is the traffic trunk that connects the main districts of the city and the main artery inside the city.

【Road Area】refers to the road area and the area of the square, bridge and tunnel connected with the road.

【Bridge】A structure built to cross a natural or man-made obstacle. Including river bridges, overpasses, pedestrian bridges and pedestrian underpasses, etc. According to the service life is divided into permanent bridge and semi-permanent bridge.

【Overpass】A traffic system consisting of Bridges or ramps that provides three-dimensional intersections between roads for motor vehicles. In general, the overpass system contains multiple bridges and ramps; All the bridges located in the overpass system belong to the overpass system.

【Drainage Pipe Length】refers to the sum of the inlet and outlet lengths of all drainage mains, trunk pipes, branch pipes, inspection Wells and connecting Wells.

【Sewage Treatment Plant】refers to a sewage treatment plant for purifying the sewage that enters the sewage collection system of a town. Includes urban sewage treatment plants, industrial wastewater centralized treatment plants and other sewage treatment facilities, excluding soakaway wells, septic tanks (including improved septic tanks) and sewage treatment plants.

【Sewage Treatment Capacity】refers to the daily sewage treatment capacity of the municipal sewage treatment plant (or treatment plant).

【Sewage Treatment Amount】refers to the amount of sewage actually treated by a sewage treatment plant (or sewage treatment plant). Including physical processing capacity, biological processing capacity and chemical processing capacity.

【Sewage Treatment Rate】refers to the proportion of treated urban and rural domestic sewage and industrial wastewater through the sewage treatment plant during the reporting period, which is a binding index reflecting the regional sewage treatment capacity.

【Comprehensive Production Capacity of Water Supply】It refers to the comprehensive production capacity calculated according to the designed capacity of water supply facilities in the links of water intake, purification, water delivery, and ex-factory water delivery pipes. Including on the basis of the original design capacity, through digging, leather, reform to increase the production capacity. In the calculation, the weakest link in the four links is used to determine the ability.

【Length of Water Supply Pipe】refers to the length of all pipes between the water supply pump and the customer's water meter. Excludes newly installed pipes not yet in use, in water plants and in customer buildings.

【Total Water Supply】refers to all the water supplied by water supply enterprises (units) during the reporting period, including effective water supply and leakage water. Effective water supply refers to the amount of water actually used by various types of users, including water sold and water supplied free of charge, after the water works have supplied the water outside the factory. Water leakage refers to the water leakage, stolen water and water meter failure in the process of water supply due to the damage of pipes and ancillary facilities.

【Water Sold】refers to the amount of water supplied by water supply enterprises (units) in charge during the reporting period, including water sold abroad and local water sold. Water sold outside the region refers to water sold outside the region. During the statistics, only the water sold locally is classified. It includes water for domestic use, water for administrative undertakings, water for industrial purposes, water for business operations and services, water for special industries (water as the main raw material for manufacturing and water for special services), and other water, excluding water sold outside the region. Calculation formula:

Total water sold = water used for production and operation + water used for public services + water used for residential homes + water used for fire fighting and other purposes.

【Water for Production and Operation】refers to the water used in the process of production and operation by agricultural, forestry, animal husbandry, fishery, industrial, construction, transportation and other units that produce and operate within the city limits.

【Public Service Water】refers to the water used for urban social public life. Including administrative institutions, military barracks and public facilities services, social services, wholesale and retail trade, hotels catering and social services and other units of water.

【Residential Household Water】refers to the daily living water of all residential households within the city limits. Including urban residents, farmers' families, public water stations.

【Water Penetration Rate】refers to the ratio of urban water users to the total urban population at the end of the reporting period. Calculation formula:

【Total Natural Gas Supply】refers to the amount of natural gas supplied by gas enterprises (units) to users during the reporting period, including sales and losses.

【Green Coverage Area】refers to the vertical projection area of all vegetation such as trees, shrubs and lawns in the city, including the greening and planting coverage area of park green space, protective green space, square land, attached green space and other green space, excluding the water area in various green Spaces and the area not covered by vegetation (hardened roads, buildings without green roofs, etc.). Shrubs and herbs that overlap under the canopy of trees cannot be double counted.

【Green Space Area】refers to the land with natural vegetation and artificial vegetation as the main forms in the urban administrative area.

【Green Coverage Rate of Built-up Area】The percentage of the total area covered by green plants of various types of green Spaces in the built-up area is an important indicator to measure the current situation of urban greening and ecological and environmental benefits. Calculation formula:

Urban green coverage rate (%) = (proportion of urban total land area of vertical projection area of all green planting in the city) x100%

The above formula does not include shrub projection area and lawn area under trees.

【Park】refers to a public place for the public to visit, enjoy, rest, carry out scientific and cultural activities, exercise and other activities, with perfect facilities and good green environment, with the comprehensive effect of improving urban ecology, fire protection and refuge. Including comprehensive park, community park, special park, belt park and street green space.

【Park Green Area】refers to the total area of green land open to the public in the city, with recreation as the main function, with certain recreation facilities and service facilities, and with comprehensive functions of sound ecology, landscaping, disaster prevention and reduction. Including: comprehensive park, community park, special park and street side green space. The total area of comprehensive park, special park and belt park is the park area.

【Per Capita Park Green Space Area】refers to the per capita occupancy of urban park green space area(Per capita indicator is calculated by year-end resident population). It is a binding index to evaluate the level of urban landscaping and reflect the quality of livable environment.

【Built-up Area】refers to the area in an urban administrative region that has actually been developed and constructed in pieces, with municipal public facilities and public facilities basically in place. For the core city, it includes the centralized and contiguous parts as well as a number of scattered areas that have been built in pieces, and the municipal public facilities and public facilities are basically available; For a city with more than one town, it consists of several areas developed and built together with municipal public facilities and basic public facilities. Therefore, the scope of built-up area generally refers to the area that can be included by the contour line outside the built-up area, that is, the range achieved by the actual land use of the city.

【The Road Sweeping Cleaning Area】refers to the final of urban roads and public places (mainly including city driveway, pavement, auto tunnel, underground tunnels and overpasses, road affiliated green space, subway stations, highways, Bridges, overpasses and overpasses, square, parking and other facilities, etc.) for cleaning the cleaning area. If cleaning is carried out many times a day, the maximum cleaning area shall be calculated.

【Household Garbage Clearance Volume】refers to the amount of household garbage that can be cleared and transported to the waste disposal site or transfer site. The household garbage clearance volume is affected by the amount of household garbage production, garbage recovery ratio, and clearance rate. Excludes waste that enters the recovery system at source.

【Harmless Disposal Volume of Household Garbage】refers to the total amount of garbage treated by simple disposal plants and various harmless disposal plants (plants) during the reporting period. Simple waste disposal capacity refers to the total amount of waste disposed of in simple landfill sites. Harmless garbage disposal capacity refers to the total amount of garbage handled by harmless garbage disposal plants.

【Urban Harmless Disposal Rate of Household Garbage】 refers to the ratio of harmless treatment amount of domestic garbage to the production amount of domestic garbage during the reporting period. Statistically, because the amount of domestic waste is not easy to obtain, it can be replaced by clearing volume. Calculation formula:

【Special Vehicle and Equipment for City Appearance and Sanitation】refers to the special vehicles and equipment used for environmental sanitation operations and supervision, including the vehicles and equipment used for road cleaning, washing, water sprinkling, snow removal, garbage and feces removal, city appearance supervision and their supporting use.