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在公路选线决策支持系统中,由于评价和分析因子的多样性、模糊性、非确定性和随机性,使得信息处理和空间综合决策分析十分复杂,而现有公路路线CAD系统尚不足以解决这类空间决策问题。利用A rcEng ine开发组件,针对新疆天山公路实际,引入G IS的有关理论、方法和技术分析手段,采用多元回归、信息量法和模糊综合评判等多种数学分析评价模型,得到公路沿线区域稳定性评价专题图。同时,综合区域稳定性、坡度、土地利用等栅格数据,利用栅格空间分析算法,得到优化线路,从而为天山公路初步设计阶段的路线方案选定提供有效的决策支持。
Due to the diversity, vagueness, non-determinism and randomness of evaluation and analysis factors in highway alignment decision support system, the information processing and spatial comprehensive decision analysis are very complicated. However, the existing highway alignment CAD system is not enough This kind of spatial decision-making problem. In order to make a practical analysis of the Tianshan Highway in Xinjiang, this paper introduces the relevant theories, methods and technical analysis methods of G IS, and adopts multiple mathematical analysis and evaluation models such as multiple regression, informative method and fuzzy comprehensive evaluation to obtain the regional stability along the highway Evaluation of thematic map. At the same time, based on the grid data such as regional stability, slope and land use, the grid is optimized by using the grid space analysis algorithm, which can provide effective decision support for the route scheme selection in the initial design stage of Tianshan Highway.