cy facilities, traffic, as well as the administrative division map elements are changed, resulting in Hangzhou urban drainage map current use of "" (1:900002003 years) reflect the content and the actual situation deviation. Management personnel in the actual use of the process, especially the outgoing inspection and investigation visit, if the elements of a map information is not accurate, it will bring great inconvenience to the work, but also affect decision-makers grasp the relevant information. In order to solve the above problems, the need for Hangzhou urban drainage map was redrawn, by re layout, perfect various kinds of map elements, in order to meet the needs in the work of the management personnel.РKey wordРThematic map; Hangzhou urban drainage map; mapping; GIS; ArcGis; CorelDraw
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