近年来,随着公路基础设施的不断改善和汽车数量的急剧增加,公路相关信息倍受社会公众的关注和需要。但由于公路线长面广,影响因素较多,各种阻碍正常通行的现象随时都可能发生。为了使公路的使用者能方便地获得必要的公路路况信息,全面提升全省路网服务水平,陕西省公路局开 In recent years, with the continuous improvement of highway infrastructure and the drastic increase in the number of cars, highway related information has drawn much public attention and needs. However, due to the long route of the highway and the more influential factors, all kinds of obstacles to the normal passage may occur at any time. In order to enable road users to easily obtain the necessary road traffic information, improve the overall level of the province’s road network service level, Shaanxi Provincial Bureau of Highway