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Help setting control on 200' high building

Help setting control on 200' high building

(OP)
i am a surveyor in nyc and have been working on building for 10years now. but now i am having a problem running my control up the building. the building is 40 floors and the adjacent building i cannot get asses to put targets onto!  any ideas on getting the control up from 2 sides of the building?

RE: Help setting control on 200' high building

Why would you need survey control inside/on top of a building?

RE: Help setting control on 200' high building


If horizontal position precision between street level and 40th floor is needed, perhaps You can adapt a method of trilateral triangulation (correctly called resection), which uses three or more lines of position to known coordinate points.

At 74th year working on IR-One2 PhD from UHK  - - -

RE: Help setting control on 200' high building

(OP)
i did setup control points and =resection a point on the slab.  I just prefer to stack up my lines on the edge of the building.  I was able to get onto the adjacent building. thanks.

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