过去,无论在公路交通方面,还是在公路建筑方面,谁也没有把节能当作一回事。自七十年代初起,因暴发了能源危机,燃油价格猛涨。人们这才开始重视节能。 1980年,在联邦交通道路规划总纲中,首次提出在交通投资方针中,要考虑到能源政策。其具体内容有: (1) 新开发的交通技术和现有交通技术的发展都要建立在能源的基础上; In the past, energy saving was not the same whether in road traffic or in highway construction. Since the early 1970s, fuel prices soared as a result of the energy crisis. People began to pay attention to energy conservation. In 1980, the federal transportation road planning master plan, first proposed in the transport investment policy, to take into account the energy policy. Its specific contents are as follows: (1) The newly developed transportation technology and the development of the existing transportation technology should be based on energy;