交通流量分类统计是道路规划设计和交通管理部门所必需的基础资料。我国自1978年起在全国范围内实行交通流量常年观测,各省区都在主要公路上设置了常年观测站和临时观测点,就陕西省而言,设有常年观测站四个,临时观测点一百三十八个。这些观测站完全依靠人工进行工作。但由于目测车 Traffic classification statistics are the basic information necessary for road planning and design and traffic management departments. Since 1978, China has implemented perennial traffic flow observations. All provinces and autonomous regions have set up perennial observatories and temporary observatories on major highways. For Shaanxi Province, there are four perennial observatories, with a temporary observation point of 1 Thirty-eight. These stations rely entirely on manual work. But due to the sight car