航测图在公路勘测设计中的应用探讨

摘要

Compared the accuracy of the digital terain models enlarged form the air photographs kept in stock, pointed out the reliability and frugality of the computerizing optimum choosing route in surveying and designing the expressway, and proved the feasibility of choosing the optimum route by taking two steps and the effect it has on the investment of the expressway construction and the policy-making as well.%比较了利用现成航摄像片"以小放大"数字化成图的精度，并指出了其在高速公路勘测设计中计算机优化选线的可靠性及经济性；同时也论证了两步选择最优化线路的可行性及其对高速公路建设投资的影响和决策。