The networks of polygonometry create now with the help of total stations. In these gears of different firms the exactitude of linear measurements is higher than an exactitude of angular measurements and practically is identical in total stations of one class of an exactitude. This feature of an exactitude of magnitudes measured total station, influences a character of accumulation of errors in the networks of polygonometry. In the article are indicated the outcomes of a research of longitudinal and transversal shifts of polygonometry courses with different lengths of the parties and different quality them in a course. They have shown, that the longitudinal shifts of courses traverse for want of modification of lengths of the parties of a course are changed slowly, and transversal will increase fast.
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