高速公路造价多少钱一公里，请问高速公路一公里造价多少钱？

高速公路一公里造价要根据地形、地势等因素确定，在我国一般平原微丘区，高速公路平均每公里造价为3000万元左右；在山区，高速公路平均每公里造价接近4000万元。高速公路简称高速路，是指专供汽车高速行驶的公路。高速公路在不同国家地区、不同时代和不同的科研学术领域有不同规定。根据中国《公路工程技术标准》（JTG B01-2014）规定：高速公路为专供汽车分向行驶、分车道行驶，全部控制出入的多车道公路。高速公路年平均日设计交通量宜在15000辆小客车以上，设计速度每小时80至120千米。

【英文介绍/For English】：

The cost of one kilometer of expressways should be determined according to factors such as topography and topography. In general plain hilly areas in my country, the average cost per kilometer of expressways is about 30 million yuan; in mountainous areas, the average cost per kilometer of expressways is close to 40 million yuan. Expressway is abbreviated as expressway, which refers to the highway specially designed for high-speed driving of automobiles. Expressways have different regulations in different countries, regions, eras, and academic fields of scientific research. According to China's "Technical Standards for Highway Engineering" (JTG B01-2014), expressways are multi-lane highways specially designed for vehicles to drive in different directions and lanes, and all control access. The annual average daily design traffic volume of the expressway should be more than 15,000 passenger cars, and the design speed should be 80 to 120 kilometers per hour.