可持续发展战略是当今全球所共同倡导的社会发展战略。首都的城市建设与发展同样面临人口、资源、环境三者如何协调发展的严峻问题。一味依赖扩展道路空间来满足不断增长的交通需求是不可取的错误策略。按照可持续发展的战略原则,首都城市交通建设必须充分考虑和最大限度地满足一些基本社会效益目标需求。 The strategy of sustainable development is the social development strategy jointly advocated by the world today. The urban construction and development in the capital are also faced with the same harsh problems of coordinated development of population, resources and environment. Blindly rely on the expansion of road space to meet the growing traffic demand is not desirable error strategy. According to the strategic principle of sustainable development, the traffic construction in the capital city must fully consider and meet the needs of some basic social benefits.