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Production rates will automatically determine required crew costs. The SharpeSoft Estimator, displaying an example of a trench calculation. Calculations: Most estimating programs have built-in calculations ranging from simple length, area, and volume calculations to complex industry-specific calculations, such as electrical calculations ...
For construction contractors or construction managers it is important to track and compile past data of trends, completed projects, production factors, equipment changes, and various labor markets. [32] Sample labor norms. The labor requirements are often the most variable and are a primary focus of construction cost estimators.
For specific project, location, or conditions the productivity factor is 0.80. The resulting production rate for that is 150 x 0.8 = 120 cy/day. The actual productivity factor for a project or subset of production rates (or man-hour rates) is the ratio of the actual production rate to the estimated production rate.
Data which can be used to calculate quantities and costs can also be part of a cost database. For example, there are various formulas for calculating the area of shapes, the volume of solids or spaces, and the weight of materials. There are defined unit properties of materials also. Materials each have certain densities or unit weights.
Takt time, or simply takt, is a manufacturing term to describe the required product assembly duration that is needed to match the demand.Often confused with cycle time, takt time is a tool used to design work and it measures the average time interval between the start of production of one unit and the start of production of the next unit when items are produced sequentially.
Chemical Engineering Index, CE: composed of 4 major components – for equipment and other bulk items, the others relevant to construction labor, buildings, and engineering and supervision – the index is employed primary as a process plant construction index, was established using a base period of 1957-1959 as 100. The CE Index is updated ...