The methods used for locating the plane table stations are1. radiation...
In the plane table survey in intersection method , we set two station on ground before ploting the area on sheet so first install the plane table at first station and plot the boundary of ground and plot the next station point on sheet before go the that station in intersection method
The methods used for locating the plane table stations are1. radiation...
Methods for Locating Plane Table Stations
In surveying, plane table stations can be accurately located using various methods. Among the options provided, the correct answer is option 'C', which includes traversing and resection. Here’s a detailed explanation of these methods:
1. Traversing
- This method involves moving from one station to another in a series of straight lines to create a network of points.
- Measurements of angles and distances are taken to establish the position of each new station relative to previously established points.
- It is beneficial for expanding control networks and allows for the accurate plotting of features.
2. Resection
- Resection is a method used when the position of the plane table is unknown, but the positions of at least two or three known points are visible.
- By sighting these known points, surveyors can determine their own location through triangulation.
- This method is particularly useful in areas where establishing new control points is impractical.
3. Radiation
- Radiation involves setting up the plane table at a known point and measuring angles to various visible features.
- While effective, this method does not help in determining the station's position relative to other points.
4. Intersection
- Intersection is the reverse of radiation and is used to locate points by sighting from two or more known positions.
- This method also does not directly assist in locating the table station.
In summary, traversing and resection (option 'C') are the correct methods for locating plane table stations, as they help establish both the position of the table and the surrounding features accurately.