Congressional District Limits

The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) congressional district feature class is a linear representation of the congressional districts polygon layer. This layer is used within external applications that summarize data based on congressional district boundaries but cannot utilized a polygon geometry, therefore utilize the linear features. Congressional districts are the 435 geographic areas in the U.S. that each elect one member to the House of Representatives, with boundaries drawn by states after each Census to ensure roughly equal population, though their shape and number vary by state, with populous states having more districts than less populous ones, with Idaho having only two. This layer is an export from Roads and Highways that represents only the active records within the LRS. This content items is a sub-layer of the RH Boundary Limits authoritative feature layer. Metadata爱达荷州交通运输部（Idaho Transportation Department, ITD）的公路与高速公路路网线性参照系统（Linear Referencing System, LRS）国会选区要素类，是国会选区多边形图层的线性表达形式。该图层应用于基于国会选区边界汇总数据但无法使用多边形几何的外部应用程序中，因此需采用线性要素。国会选区是美国境内的435个地理区域，每个区域选举1名众议院议员。各州会在每一次人口普查后重新划定选区边界，以确保各选区人口规模大致相当；不过选区的形状与数量因州而异，人口较多的州拥有更多选区，而爱达荷州仅设有2个国会选区。该图层是从公路与高速公路模块导出的，仅展示线性参照系统（LRS）内的有效记录。本内容项是RH边界限制权威要素图层的子图层。元数据