Road Type

The Idaho Transportation Department's (ITD) Roads and Highways Linear Referencing System (LRS) road type event polyline feature class distinguishes road segments based on road type, which can be a road, ramp, or port of entry/rest area. Roads are public thoroughfares or routes used primarily for the movement of traffic. Ramps are roads that allow vehicles to enter or exit a main road safely by providing space to change speed and navigate the change in elevation if necessary. Port of Entries within states are locations where a state enforces commercial vehicle regulations. Rest Areas are facilities for travelers to rest, often located every 50-100 miles along major roads, providing amenities like restrooms and picnic tables. This layer is an export from Roads and Highways that represents only the active records within the LRS. This content item is a sub-layer of the Road Network - Other authoritative feature layer. Metadata爱达荷州运输部（Idaho Transportation Department，ITD）的道路与高速公路线性参考系统（Linear Referencing System，LRS）道路类型事件折线要素类，可依据道路类型对道路路段进行区分，道路类型可分为普通道路、匝道以及入境口岸/休息区三类。普通道路指主要用于交通通行的公共干道或通行路线；匝道是为车辆提供安全驶入或驶离主路的道路，可预留变速空间，并在必要时适配高程变化的导航需求；州内入境口岸是州政府落实商用车辆监管法规的执法点位；休息区则是供旅行者休憩的配套设施，通常沿主干道每隔50至100英里设置，配备洗手间、野餐桌等便民设施。该图层源自道路与高速公路系统的导出数据，仅包含线性参考系统中的有效记录。此内容项为“道路网络-其他权威要素图层”的子图层。元数据