sweetapricity/bridgedeck-elevation

该数据集是bridgedeck集合的一部分，用于美国桥面劣化研究。它提供了美国各桥梁位置的海拔高度数据（以米为单位，基于NAVD88垂直基准），这些数据通过美国地质调查局（USGS）的3D高程计划（3DEP）和高程点查询服务（EPQS）获取，分辨率为1/3弧秒（约10米），覆盖美国本土、阿拉斯加和夏威夷。海拔高度作为桥面劣化相关因素的代理变量，例如高海拔可能导致更多冻融循环、冰雪和除冰盐使用，低海拔可能增加洪水暴露和湿度，沿海低海拔则涉及海洋氯化物暴露。数据集包含一个CSV文件，列有桥梁ID、纬度、经度和海拔高度，并衍生出海拔类别特征。该数据集是预查询的，以避免重复执行约90万次API调用，主要用于研究中的依赖数据。This dataset is part of the bridgedeck collection for US bridge deck deterioration research. It provides elevation above sea level (in metres, NAVD88 vertical datum) queried at each unique US bridge location from the USGS 3D Elevation Program (3DEP) via the Elevation Point Query Service (EPQS), with a resolution of 1/3 arc-second (~10m) and coverage of CONUS, Alaska, and Hawaii. Elevation serves as a proxy for several deterioration-relevant factors, such as high elevation leading to more freeze-thaw cycles, snow/ice, and deicing salt use, low elevation increasing flood exposure and humidity, and coastal low elevation involving marine chloride exposure. The dataset includes a CSV file with columns for bridge ID, latitude, longitude, and elevation, and derives elevation class features. It is pre-queried to avoid re-running approximately 900k API calls and is used as a dependency in research.