Ascent field

The compound type refers to road sections that have increased road width in larger slopes to facilitate accessibility. Climb fields are in some cases signposted, and marked with painting on the roadway. However, an increased road width is crucial if the climb field is registered. The purpose of the data product is to show which road sections have extra lanes for slow-moving vehicles in steep slopes.复合类型路段（compound type）指为提升通行便利性，在陡坡路段增设加宽路面的道路区段。爬坡路段（climb fields）在部分情况下会设置标识，并以路面标线进行标注。但若该爬坡路段已完成备案，则加宽路面为不可或缺的关键配置。 本数据产品的核心用途为展示陡坡路段中为慢行车辆增设专用车道的相关道路区段。