Niagara Falls Sidewalk Snowplow Routes

This spatial data set contains polylines representing sidewalks that are plowed by maintenance operations during the winter months in the City of Niagara Falls. Plowed sidewalk segments and also major drift areas (differentiated in the SW_SNOW_ID attribute field) are included in this layer.本空间数据集包含若干折线（polyline）要素，用于表征尼亚加拉瀑布市（Niagara Falls）冬季经养护清雪作业处理的人行道。本图层涵盖已清雪的人行道区段与主要积雪漂移区域，两类要素可通过SW_SNOW_ID属性字段进行区分。