TECHNICAL TERMS USED IN ESTIMATION COSTING AND VALUATION ENGINEERING | LCETED

TECHNICAL TERMS USED IN ESTIMATION COSTING AND VALUATION ENGINEERING

 

ESTIMATE:

An estimate is the anticipated or probable cost of work and is usually prepared before the construction is taken up. It is indeed calculations or computations of various items of engineering work.

 

QUANTITY SURVEY:

It is the schedule of all items of work in a building. These quantities are calculated from the drawing of the building. Thus quantity survey gives quantities of work done in case of each items when priced gives the total cost. In short, quantity survey means calculations of quantities of materials required to complete the work concerned

 

SPECIFICATIONS:

Detailed specifications give the nature, quality and class of work, materials to be used in the various parts of work, quality of the material, their proportions, method of preparation, workmanship and description of the execution of work are required.

 

RATES:

The rates of various items of works, materials to be used in the construction and the wages of different categories of labour (skilled and unskilled) should be available for preparing an estimate. The cost of transportation charges should also be known. As far as possible sanctioned “Schedule of Rates” shall be followed or the rates may be worked out by the “Analysis of Rates” method.

 

SITE PLAN:

It is the plan drawn for a particular construction showing its position with respect to approaching roads, main bazaars, markets and other permanent features in a populated area. It shows the location of the area under construction with respect to the other areas and on it generally, the names of the owners of areas or property holders adjoining to it are also denoted. The North line is also clearly marked on it.

 

LINE PLAN:

A line plan can be defined as the plan of a particular construction simply showing main features with the help of the single lines of different portions of the constructions. Details of constructions are not generally shown on this plan. The inside and outside dimensions are shown on this plan should necessarily be corresponding to actual dimensions.

 

INDEX PLAN:

This is the plan of a particular colony showing the positions of different houses in single lines their number if any position of roads, schools, market, hospitals and other features etc. this plan is generally fixed on the entrance, or an the exit or in the central place of the colony, for the guidance of the inhabitants and outsiders.

 

DETAILED PLAN:

This plan indicates a plan of construction drawn to a definite scale, showing all detailed information required for its execution. Various sections and elevations are clearly drawn on this plan.

 

CENTRELINE PLAN:

This is actually a layout plan drawn to facilitate the laying out of foundation lines and other features. It is generally fixed on the entrance or at the exit in the central place of the colony for the guidance of the inhabitants and outsiders.

 

SUPPLEMENTARY ESTIMATE:

When some additions are done in the original work, a freshly detailed estimate is prepared to supplement the original work. This estimate is called a supplementary estimate. It is also accompanied by all the papers as required in thru detailed estimate.

 

ADMINISTRATIVE APPROVAL:

For any project required by the department an approval so sanction of the competent authority with respect to the cost and work is necessary at the first instance. Thus administrative approval denotes the formal acceptance by the administrative department concerned of the proposals for incurring the expenditure.

 

TECHNICAL SANCTION:

It means the sanction and order by the competent authority of the department for the detailed estimate design calculations quantities of work rates and cost of work..after the technical sanction of the estimate is received the work is then taken up for construction.

 

COMPETENT AUTHORITY:

An officer or any other authority in the department to whom relevant powers are delegated by the government (Financial Department).

 

ORDINARY MEASUREMENT BOOK:

It is a measured book in which entries regarding the work done or supplies made and services performed are recorded for the purpose of making payments to the contractors or the labour. Entries in the M.B are generally recorded by the sectional officers or by any other officers deputed for the purpose

 

LUMPSUM ITEMS

Sometimes while preparing an estimate for certain small items like front architecture or decoration work of a building it is not possible to work out detailed quantities so far such as lump sum items a lump sum rate is provided.

 

PLINTH AREA

The built-up covered area of a building measured at the floor level of any storey is called the plinth area.

 

CIRCULATION AREA

The total cost of construction including all expenditures incurred plus the cost of external services up to the end of the completion of the work is called capital cost. It also includes the cost of preliminary works, miscellaneous items and supervision charges etc.

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