TrafficReportingLayers

Traffic sections define segments of roadway where traffic volume is homogeneous along each segment length, and the specific breakpoints where traffic volumes change. This segmentation of the roadway network is necessary for the assignment of point level traffic count information to GIS roadway segments and serve to support HPMS annual reporting and other planning purposes. The relationship between traffic count stations and traffic sections is defined in the traffic sections, and this link is critical in the creation, management, and use of all network traffic statistics and information. The spatial location of each traffic section and station is defined in ADOT’s GIS linear reference system. Traffic counts are generally collected at a single point along a section of roadway, and are commonly referred to as Count Locations, Sites, or Stations.Ideally, counts are taken at the same location (or nearby) periodically. The MS2 Traffic Count Database System (TCDS) allows traffic collection agencies to create or contribute to a database of traffic data, including count locations. ADOT also maintains a database of traffic count stations, which is reconciled with the TCDS. Traffic Count Stations are assigned to a Traffic Section through the Traffic Section ID. The Station"s ID can also be used in the calculation of traffic statistics for that Traffic Section, which is how it is utilized in analysis and reporting (such as HPMS).交通路段（Traffic Section）指道路网络中沿路段长度方向交通量保持均一的道路片段，以及交通量发生变化的特定分界点。对道路网络实施此类分段，是将点位级交通量计数信息匹配至地理信息系统（Geographic Information System, GIS）道路路段的必要前提，同时可为公路性能监测系统（Highway Performance Monitoring System, HPMS）年度报告编制及其他规划工作提供支撑。交通计数站点与交通路段之间的关联关系通过交通路段进行定义，该关联关系对于所有路网交通统计数据与信息的创建、管理及使用均至关重要。各交通路段及计数站点的空间位置，均通过亚利桑那州交通部（Arizona Department of Transportation, ADOT）的GIS线性参考系统进行定义。交通量计数通常沿道路路段在单点采集，这类点位通常被称为计数点位（Count Locations）、计数站点（Sites）或交通计数站（Stations）。理想情况下，交通量计数应定期在同一位置（或邻近位置）开展。MS2交通量计数数据库系统（Traffic Count Database System, TCDS）支持交通量采集机构创建或参与包含计数点位在内的交通数据资料库。亚利桑那州交通部同时维护有一套交通计数站点数据库，并会与TCDS进行数据校核统一。交通计数站通过交通路段编号（Traffic Section ID）关联至对应交通路段。交通计数站编号还可用于计算对应交通路段的交通统计数据，这也是其在分析及报告（如公路性能监测系统年度报告）中的应用方式。