Chapter III is the focus of this paper, from GIS technology data management, information visualization capabilities, analysis of space transportation systems to deal with road network evaluation.

第三章是本文的重点，分别从GIS技术的数据管理、信息可视化能力、空间分析方面来处理公路网交通系统评价问题。

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Then, the applications of GIS technology in traffic survey, public transportation planning, calculation of traffic need and other fields are deeply discussed.

然后，重点探讨地理信息系统技术在交通调查，公共交通规划，交通需求预测和其他领域里的应用。

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But the GIS technology has become the most useful tool of assisting the urban transportation plan because of its powerful drawing processing ability and the spatial data analytical functions.

GIS技术以其强大的图形处理的能力和空间数据分析的功能，已成为辅助城市交通规划的最有力的工具。

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