结合道路设计理论与交通规划理论，以地理信息系统为平台，开发道路选线优化模型。
A model for optimization of road route and alignment is developed based on road design theory, transport planning theory and GIS platform.
尽管优化了交通中枢的布局，设计师意识到一系列的楼梯不仅有提供上下移动的重要性。
The communications core, in spite of its optimized configuration, we understood it might have more presence that just a series of stairs where occurs the up and down movement.
以微观层面的交通改善为重点，提出交叉口优化设计的方法框架。
Focusing on the micro level of traffic improvement, the paper presents a methodological framework for intersection improvement design.
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