Traffic Counts

Feature layer containing authoritative traffic count points for Sioux Falls, South Dakota. The traffic counts listed are 24-hour, weekday, two-directional counts. Traffic counts are normally collected during the summer months, but may be taken any season, as weather permits. The traffic counts are factored by the day of the week as well as by the month of the year to become an Average Annual Daily Total (AADT). Traffic volumes (i.e. count data) can fluctuate depending on the month, week, day of collection; the weather, type of road surface, nearby construction, etc. All of the historical data should be averaged to reflect the "normal" traffic count. More specific count data (time, date, hourly volume) can be obtained from the Sioux Falls Engineering Division at 367-8601.包含南达科他州苏福尔斯市（Sioux Falls）权威交通计数点位的要素图层（Feature layer）。所列交通计数均为24小时工作日双向计数。交通计数作业通常于夏季开展，但在天气条件允许的前提下，也可于其他季节进行。交通计数会依据星期几与年度月份进行系数修正，最终换算为年平均日交通总量（Average Annual Daily Total, AADT）。交通流量（即计数数据）会因采集月份、周次、采集日期、天气状况、路面类型以及周边施工等多种因素产生波动。需对所有历史数据取平均值，以反映常规交通计数水平。如需获取更详细的计数数据（包括采集时间、日期、小时流量等），可联系苏福尔斯市工程部门，联系电话：367-8601。