Is the gps point sign used to build roads?

Gps point signs are used in road construction. The purpose of setting these points is to facilitate the survey or the construction team to establish a plane control network and accurately set out the specific location of the project. GPS point mark is used in GPS control survey. The selection, arrangement and embedding of points should be planned according to the specific survey needs, terrain conditions and the distribution of points in the actual survey area, and the points and marks should be marked and recorded.

Knowledge of using GPS point markers;

1, GPS point mark is used to control survey in surveying and mapping or engineering survey. Generally, it is laid in areas with poor visibility, and GPS receivers are used to collect data. The biggest feature of GPS measurement is that it can be measured in places with poor visibility.

2.GPS measuring point is also a kind of control point, and the coordinates of GPS point marks obtained by using different coordinate systems are different.

3. Generally visible GPS point marks are low-grade marks, and high-grade marks are generally set in hidden places for protection and long-term measurement. In addition, signs have different shapes, such as umbrella, flat and different materials, and stainless steel signs will be used for higher-level measurement.

Baidu Encyclopedia-Satellite Positioning System