At first, we should know what is surveying or land surveying, then you can know the advantages and disadvantages of survey.
Surveying is a system, craftsmanship, and study of realizing the earthbound or three-dimensional places of focuses and the differences and edges between them. These focuses are for the most part on the outside of the Earth, and they are regularly used to set up maps and, boundaries ownership, areas, for example: building corners or the surface area of subsurface highlights, or different purposes required by government or civil law, like property deals. Plane Table Surveying is a graphical strategy for overview the field perceptions and plotting are done one by one. It is basic and less expensive than theodolite study. It is generally reasonable for little scope maps. When you think for a survey, you may see the advantages and disadvantages of survey.
Meaning of Plane Table Survey:
Plane table Surveying is also known as plane tabling which is a strategy for reviewing where field-work and office work are done all the while on a plane table. The field perceptions are taken and recorded next to each other on the sheet fixed upon the plane table and a map of the region is gotten. The utilization of field-book is absolutely eliminated. If you want to know what is surveying, the knowledge of the Plane table survey can help you. It is generally appropriate for the survey of subtleties between stations which have just been fixed by theodolite or some other exact strategy for surveying. It is regularly utilized for little and medium scale mapping of similarly huge zones where incredible exactness isn’t the primary thought, for example, for topographical surveys. There have always advantages and disadvantages of survey. The equipment basically required for plane tabling is a plane table or drawing board with a drawing sheet and is mounted on a tripod stand and an alidade which gives view and a straight graduated edge.
Highway surveying is known as road construction surveying which is a most popular and special type of land surveying usually directed by government agencies during the planning stages of any highway road development project. And for this survey, a construction surveyor is generally involved in the allocation process for the highway. This needs a survey of the existing country to find the best route such shortly for time and also a transaction cost saver. Plane table survey is used in road construction surveying. After knowing the advantages and disadvantages of survey, you can easily start the survey.
Advantages of Plane Table Survey
Plane Table Survey have many advantages rather than its disadvantages. Following advantages of Plane Table Survey you can see when you do this.
- Surveying instrument Surveying is best suited for preparing small‐scale maps than the opposite surveying method.
- Plane Table Survey may be a very swift method of surveying.
- The field book isn’t necessary as plotting is completed within the field simultaneously with the sector work. Therefore the possible errors of the field book are often avoided, this advantages of Plane table survey help you in different way.
- The surveyor can compare the plotted work with the particular features of the world surveyed and thus can ascertain if it represents temporarily.
- It is especially advantageous in magnetic areas where compass survey isn’t dependable.
- Plane table survey is a smaller amount costly than most of the surveying technique.
- It doesn’t require professional’s hands and it the best advantages of Plane table survey.
- The observations and plotting are done simultaneously, hence there’s no chance of omitting necessary details.
- The errors and mistakes in plotting are often checked by drawing check lines.
- Irregular objects are often plotted accurately because the lay of land is in sight.
- It is most quick and necessary for filling in details.
- No need for any kind of great skill.
- Plane table survey is cheaper than theodolite survey.
- It is advantageous in magnetic areas where compass survey isn’t probable.
- All conceivable human and machine blunders can be wiped out as the studying and plotting are done all the while in the field and it the great advantages of Plane table survey
- Contours and other unpredictable items might be exactly find to guide since the tract is in see.
- Plane table looking over discovers its significance in the spots with high attractive changes where compass study is independent.
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Accessories Used in Plane Table Surveying:
The accessories are needed for the survey are:
- Board: The drafting board is carefully made from wet seasoned wood which repel the effect of warping and damages from weathering. Plane tables are available with different sizes.
- Tripod: A frame which is open type and light tripod is usually provided for fixing the drawing table.
Disadvantages of Plane Table Survey
Here some disadvantages of plane table survey are noted below-
- The procedure of moving and re-arranging the plane table starting with one spot then onto the next is protracted.
- This sort of looking over isn’t good in rainy season and windy regions as the plotting work are done in the field itself.
- The plane table and its spares are very heavy weighted and hard to carry, that’s why it is a disadvantage of plane table survey.
- The precision accomplished in different sorts of surveying is higher than the exactness accomplished via plane table survey.
- If the survey is only plotted to an alternate scale or amounts are to be figured, it is an extraordinary burden without the field notes.
- It isn’t compatible for looking over huge territories.
- This technique of surveying isn’t appropriate in any forest backwoods territories as the trees hinder the perspective on other significant parts of the field.
- This survey for looking over must be done in the day time and it really a disadvantages of plane table survey.
- One more very bad disadvantages of plane table survey is that plane table survey does not give very accurate outcomes.
- In stormy season this Plane table review can’t be utilized.
- The table must be focused and arranged at each station which is extremely tedious.
Conclusion
Every kind of work have a good side or a bad side. Like that advantages and disadvantages of survey is very common to occur. Plane table survey is a graphical strategy for studying in which both the hands on work and plotting are done at the same time utilizing a plane table. The fundamental preferred position of plane table surveying is that the topographic highlights to be mapped are in full view. So before starting surveying, you have to read the advantages and disadvantages of survey.