Subway safety protected area rule and regulation-breaking project area rapid measurement method

The present invention relates to a subway safety protected area rule and regulation-breaking project area rapid measurement method. The main objective of the invention is to solve the technical problems of much consumed time, poor accuracy and carrying many tools of an existing manual measurement method. The rapid measurement method includes the following steps of: polygonal rule and regulation-breaking project angular point acquisition: a built-in GPS is adopted to position the GPS coordinates of each point of the contour of the rule and regulation-breaking project; and area acquisition: the polygon is decomposed into triangular structures, the sum of the area of the triangles is the area S of the polygonal rule and regulation-breaking project, wherein the area S of the polygonal rule and regulation-breaking project is expressed by an equation described in the descriptions in the invention, wherein deltaopkpk+1 is a defined origin point, (0,0) is the starting point of a corresponding triangle, a triangle opk