Municipal road land acquisition house statistical method

Abstract

The invention relates to a municipal road land acquisition house statistical method which comprises the following steps: S1, selecting and determining a land acquisition demolition area according to an actually measured topographic map provided by a survey bureau; S2, cleaning the topographic map, removing unassociated layers, and reserving house layers and annotations thereof; S3, performing format conversion on the cleaned topographic map, and importing the topographic map into GIS software; s4, in GIS software, detecting the house contour line, removing isolated line segments, and then performing topology analysis to form a zone file; according to the previously imported house annotation, performing attribute assignment on the area file, and establishing an attribute structure for judging whether the house is expropriated or not in the area file; and S5, importing the land expropriation and demolition area and the area file into a spatial analysis module together, performing intersection analysis to form an intersection file, and superposing the original house area file according to the attributes of the intersection file to obtain a result drawing of the house in the land expropriation and demolition area. And land acquisition and house demolition statistics becomes faster.

Description

technical field [0001] The invention relates to the technical field of geographic information processing, in particular to a statistical method for municipal road land requisitioned houses. Background technique [0002] With the optimization and development of the city, municipal roads continue to extend to surrounding suburban counties, and the construction of municipal roads will face the problem of land acquisition and house demolition investment along the line. It is an essential content in the investment estimation in the feasibility study stage of the road engineering design to make statistics on the types and areas of land-expropriated houses along the line. According to the latest topographic map, the existing statistical methods mark the types and areas of houses within the scope of the ground line one by one, and then classify and count. [0003] Surveying and Mapping of Existing Topography in Engineering Design Figure 1 Generally, geometric and coordinate featur...

AI Technical Summary

Problems solved by technology

The existing statistical method for land-expropriated houses is to manually delineate and measure the area of ​​the houses one by one in CAD software. The disadvantage of this method is that when the distribution of houses along the line is relatively scattered or the number of houses is large, it takes a lot of time for designers to make statistics, and it is easy to Missing marks, when the route plan changes, it has to be counted again, which is very inefficient

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