Plane table surveying is a graphical method of surveying in which both the fieldwork and plotting are done simultaneously using a plane table. The main advantage of plane table surveying is that the topographic features to be mapped are in ...

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## Tape Corrections in Chain Surveying

The chain surveying performed by a tape is expected to have some errors due to incorrect tape measurements. In ordinary chaining works, the errors are neglected. But for important and precise survey works in construction, accurate tape corrections are provided. ...

## What is the Global Information System (GIS)?

GIS is a computer-based information system that performs the activities of capturing, storing, manipulating, analyzing and displaying both spatial and non-spatial data in order to solve complex research, planning and management problems. It is a system of hardware and software ...

## What is the Whole Bearing System (WBS) and Quadrantal Bearing System (QBS) in Surveying?

The whole bearing system (WBS) and Quadrantal Bearing system (QBS) are two notations of bearings that are used in compass surveying. The WCB system can be converted to QBS or vice versa by a simple calculation. Different bearings used in ...

## Magnetic Compass Used in Surveying -Principles & Types

A compass surveying is performed by means of a magnetic compass which helps to determine the angles and the direction of the survey lines. The main two types of magnetic compass employed are a prismatic compass and a surveyor compass. ...

## Errors in Chain Surveying – Types and Causes

The errors formed in chaining can be either cumulative error and compensating error. The errors can be considered either as a negative value or positive value depending on whether the result is a higher value or smaller value. Cumulative Error ...

## Incorrect Chain in Surveying – Error & Correction

If the chain that is employed for measuring length is not equal to the true length, then the length measured won’t be correct. This measurement hence requires correction. A chain that is very long, gives a distance that is lesser ...

## What is Ranging? Direct and Indirect Ranging

The process of fixing or establishing intermediate points to facilitate measurement of the survey lines are called as Ranging. The intermediate points are located by means of ranging rodes, offset rods and ranging poles. Ranging Out Survey Lines While measuring ...