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随着交通和旅游事业的发展,公路运输将日益繁忙。公路是带状构造物,往往蜿蜒数十、数百乃至数千公里,沟通许多城镇和乡村。因此,它与人们的生活环境有密切的关系。如同其它运输方式一样,公路运营所要求的也是安全和畅通。高速公路、游览道路以及在普通公路的设计建筑中也考虑到了美观的要求,即修筑的公路对驱车行驶的司机,要有良好的视线诱导,使他们感到心情轻松愉快,不感到紧张和危险,从而能减轻司机的疲劳;另一方面,公路要与周围的地形、地物和风景配合谐调,互相陪衬,使人们有美的感觉。一般地说,公路设计规范的技术标准都是根据行车力学方面考虑的,美
With the development of transport and tourism, road transport will become increasingly busy. The road is a strip structure, often winding tens, hundreds or even thousands of kilometers, to communicate with many towns and villages. Therefore, it is closely related to people’s living environment. Like other modes of transport, the requirements of road operations are also safe and unobstructed. The highways, excursions, roads and the design of ordinary highways also take into account the aesthetic requirement that the roads to be built should be well-guided by the drivers who drive them so that they feel relaxed and happy without any tension or danger. Thus alleviating the driver’s fatigue; on the other hand, the road should be harmonized with the surrounding topography, features and landscapes to foil each other and make people feel beautiful. In general, the technical standards for highway design specifications are based on the consideration of traffic mechanics, the United States