Adjustment of a Traverse Network

A method for the simultaneous adjustment of a network of traverses is proposed. The network is regarded as being composed of individual traverses running between pairs of nodal points. Each traverse is reduced into a triplet of quasi observations which are correlated through the reduction process. The set of quasiobservations of the entire traverse network is adjusted rigorously by the method of variation of co-ordinates (observation equations) where the weight matrix is quasidiagonal being the inverse of the tridiagonal covariance matrix of the triplets. An experiment is described where a network of 20 individual traverses was adjusted using a computer program developed in accordance with the proposed method. Parameters of the adjustment were the X, Y plane co-ordinates of each nodal point as well as Z, the bearing of the respective reference directions.