兴延高速规划线位比选方案的选线,应当在兼顾局部利益的基础上服从公共利益为最高原则,规划线位的公共利益原则首先应当是生态环境保护原则,其次是经济发展原则。白羊沟方案既不利于北京上风上水生态安全控制区域的涵养和保护,也不利于区位产业优势的聚集、优化和成片带动, The principle of public interest in planning line position should first be the principle of ecological environment protection, and secondly, the principle of economic development, on the basis of giving consideration to local interests on the basis of giving consideration to local public interests. The plan of Aries is not conducive to the conservation and protection of Beijing’s ecologically-safe and controllable upper reaches of Sheung Shui. It is also not conducive to the aggregation, optimization and promotion of industrial advantages in the area.