自1975年的墨西哥第十五届国际道路会议以来,公路交通建设的环境保护问题越来越引起人们的注意。为此,本文将把公路交通作为一种完成运输产品形式的线形生产企业和人类生存活动中进行物质、能量交流及信息反馈的人工环境,并对复杂的“公路交通——环境”系统及环境问题进行初步的系统探讨,以便与同行们从环境系统工程的角度去进一步探讨公路交通建设的环境保护问题。一、公路交通与环境首先,环境是相对于某项中心事物而言的物质氛围。它为中心事物的对立面而存在,并因中心事物的不同而不同,且随中心事物的变化而变化。因此,若以公路交通作为一个中心 Since the 15th Mexican International Conference on Roads in 1975, the issue of environmental protection of road traffic construction has drawn more and more attention. For this reason, this paper regards the highway traffic as a kind of artificial environment which fulfills the linear production enterprises in the form of transport products and the material, energy exchange and information feedback in the living activities of human beings, and analyzes the complex “road traffic-environment” system and environment To carry out a systematic preliminary study of the problem so as to further explore the environmental protection of highway traffic construction from the perspective of environmental systems engineering with their counterparts. First, the road traffic and the environment First of all, the environment is relative to a central matter in terms of material atmosphere. It exists as the antithesis of the central thing, and differs from the central one, and it changes as the central one changes. Therefore, if the highway traffic as a center