结合法定程序 更新地形与管线信息

UPDATING INFORMATIONS OF TOPOGRAPHY AND UTLITY LINES

大比例数字化地形图、地下管线图的及时更新是地理信息系统在城市规划中应用的现实瓶颈，采用竣工测量方法更新上述资料可达到既节省资金又保证现势性的目的 。现行的城市规划法律体系已为推行这项制度提供了保障，作者就如何结合城市规划管理的法定程序，实现上述目的，开展讨论，并提出了具体建议。这些建议不但可解决基础地图的更新问题，同时有利于推进城市规划实施管理的信息化，还有利于加强规划的实施管理和监督。

To Keep large-scale digital maps and underground utility line maps up -toate is usually a bottle-neck in the application of GIS to urban planning.Surveying on completion of engineering work is an economical and practical way to record newest data ,which is ensured by legal measure .Proposal is made in the article to promote the method of renewing the fundamental maps.