District 1 Mask

The District 1 mask layer allows a focal view of the geographic boundary of Idaho Transportation Department's (ITD) District 1, and removes neighboring districts feature visibility to improve legibility. The polygon is identified by a district ID number and provides a clean visual for organizing transportation operations used to define the operational zones for highway maintenance activities, resource allocation, and administrative oversight. District Boundaries and subsequently district masks are subject to change at the discretion of the Idaho Transportation Board. This content item is a sub-layer of the Cartographic Masks authoritative feature layer. Metadata第一区掩码图层可聚焦呈现爱达荷州交通运输部（Idaho Transportation Department, ITD）第一区的地理边界，并隐藏邻近区域的要素显示以提升可读性。该面要素通过区编号进行标识，可提供清晰可视化效果，用于梳理交通运输运维工作，以明确公路养护作业、资源配置及行政监管的作业区域。区边界及后续的区掩码图层可根据爱达荷州运输委员会的酌情决定进行调整。本内容项为制图掩码（Cartographic Masks）权威要素图层的子图层。元数据