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The California Bearing Ratio (CBR) is a measure of the strength of the subgrade of a road or other paved area, and of the materials used in its construction. The ratio is measured using a standardized penetration test first developed by the California Division of Highways for highway engineering . [ 1 ]
A small amount of this data is then used to calculate two monthly index figures, the Construction Cost Index and the Building Cost Index. Both indexes are calculated using a formula made up of fixed amounts of four components—Portland cement, 2x4 lumber, structural steel (steel beams), and labor.
A Allocation of costs is the transfer of costs from one cost item to one or more other cost items. Allowance - a value in an estimate to cover the cost of known but not yet fully defined work. As-sold estimate - the estimate which matches the agreed items and price for the project scope. B Basis of estimate (BOE) - a document which describes the scope basis, pricing basis, methods ...
The current replacement value is defined as what monetary value the organization places on the facility. An accurate FCI is dependent on the cost estimates developed for the facility deficiencies and current replacement value. [citation needed] The FCI is a relative indicator of condition, and should be tracked over time to maximize its benefit.
Tools that may be part of costs estimation are cost indexes. These factors promote time adjustment of capital costs, following changes in technology, availability of materials and labor, and inflation. [22] Due to the inherent unavailability of up-to-date Chemical Process Engineering cost literature, several inflation or cost indexes are available.
This involves reviewing the project's plans and specifications to produce a take-off or quantity survey, which is a listing of all the materials and items of work required for a construction project by the construction documents. Together with prices for these components, the measured quantities are the basis for calculation of the direct cost.