County Precinct Archive 2010
收藏资源简介:
A 2010 archive of county precincts for Jefferson County, Colorado. The county precinct number is a ten-digit code conforming to a specified format: DIGIT 1: FEDERAL HOUSE (CONGRESSIONAL) DISTRICT DIGITS 2-3: STATE SENATE DISTRICT DIGITS 4-5: STATE HOUSE DISTRICT DIGITS 6-7: COUNTY CODE ("30") DIGITS 8-10: UNIQUE PRECINCT IDENTIFIER (PER COLUMNS 1-7) As an example, precinct 6222630071 is the 71st unique precinct serving the combination of Jefferson County (30) and the 6th Congressional district, 22nd State Senate district, and 26th State House district. County precinct data, along with all core jurisdictional data pertinent to elections, was maintained in the Address Geocode Environment (AGE) production database by IT Services via the AGE Tools. Source data was the Geocode coverage which contained polygonal data to which jurisdictional attributes were attached. Geocode was an atomic-level polygonal coverage, by which we mean each polygon feature carried the core political data (county precinct {with federal house, state house and state senate districts embedded within}, city code {municipal status}, city ward, city precinct, commissioner district, regional transportation district {RTD}, traffic impact fee area {TIFA}, south jeffco local improvement district) used by the Elections Office in the determination of ballot styles. Whenever editing to Geocode geometry occurred or whenever Geocode political atttribution was edited, Geocode was dissolved for each core political component (column) by nightly enterprise processing. In this case, CountyPrecinct results from a dissolve of Geocode's CPCNT column (here column CPCNT2010RS). All derivatives, like CountyPrecinct, are then re-freshed in the County's spatial data warehouse. Data is in State Plane Grid Coordinates, Colorado Central Zone, NAD83 (US feet).
本数据集为科罗拉多州杰斐逊县(Jefferson County)2010年县选区(county precinct)档案库。 该数据集的县选区编号为遵循特定格式的十位代码,各数位的定义如下:第1位为联邦众议院(国会)选区;第2至3位为州参议院选区;第4至5位为州众议院选区;第6至7位为县代码(固定为"30");第8至10位为唯一选区标识符,基于前7位字段生成。 示例:选区编号6222630071即为第71个唯一选区,对应杰斐逊县(代码30)、第6国会选区、第22州参议院选区及第26州众议院选区的组合。 县选区数据及所有与选举相关的核心管辖区域数据,均由IT服务部门通过地址地理编码环境(Address Geocode Environment,AGE)工具维护于AGE生产数据库中。 源数据为地理编码覆盖数据集,该数据集包含附带管辖区域属性的多边形数据。 地理编码覆盖数据集为原子级多边形覆盖数据集,即每个多边形要素均携带有选举办公室用于确定选票样式的核心政治属性数据,包括:内嵌联邦众议院、州众议院与州参议院选区信息的县选区、城市代码(含市政地位)、城市选区、城市分区、专员辖区、区域交通区(Regional Transportation District,RTD)、交通影响费区(Traffic Impact Fee Area,TIFA)以及南杰斐逊县地方改善区。 每当对地理编码的几何图形进行编辑,或对其政治属性进行修改时,系统将通过夜间企业级处理流程,针对每个核心政治组件(字段)拆解地理编码数据集。 本次生成的县选区数据集(CountyPrecinct),即由地理编码数据集中的CPCNT字段(此处为CPCNT2010RS字段)拆解得到。 所有衍生数据集(如县选区数据集)随后将在该县的空间数据仓库中完成刷新更新。 数据集采用科罗拉多中央区州平面网格坐标系(State Plane Grid Coordinates, Colorado Central Zone),基准为NAD83,单位为美制英尺。



