Average_Daily_Trips

County roads with Average Daily Trip (ADT) values. ADT values are from a variety of sources, including actual counts and estimates. ADT data is stored on the Mobility road management software and data system established by the Washington County Road Administration Board (http://www.crab.wa.gov/Technology/Mobility/).包含日均出行量（Average Daily Trip，ADT）数值的华盛顿县县级道路数据集。该数据集的ADT数值来源于多类渠道，涵盖实际观测计数与估算结果。相关ADT数据存储于华盛顿县道路管理委员会（Washington County Road Administration Board）搭建的交通出行道路管理软件及数据系统中，系统相关网址为：http://www.crab.wa.gov/Technology/Mobility/。