Abstract
The Global Positioning System (GPS) which recently has taken rapid strides is able to obtain 3-dimensional coordinates very accurately. In the GPS, only one person can perform surveying work, and in kinematic survey, among others, can complete the observation at each marking point in only a few seconds. To date, application of the GPS has reduced labor in a large number of surveying works. Most surveying conducted at construction sites is by the conventional marking-point surveying system, which requires the realtime surveying results to be attained. To eliminate this, a system in which online data can be processed through GPS-based kinematic surveying in order to obtain almost realtime measurement results was developed. Furthermore, based on this new system, a GPS-based marking point surveying system as discussed in this paper was developed.