Application of Non-oriented Traverse and Its Accuracy Analysis

With the rapid development of city reconstruction,the original surveying control networks are destroyed partially and continually.As a result,many plane control points become isolate ones that have coordinates without orientations.Due to the few redundant observations,the single non-oriented traverse has low reliability,and its lateral-errors of traverse points are always not permitted.The above disadvantages can be overcome by designing the non-oriented traverse with reasonable and optimal network,as well as its application is extended.For solving above problems,the accuracy and schemes of non-oriented traverse network are analyzed and discussed in this paper,which may lead to some useful suggestions.