2. A zone's HBW trip production and attraction tables have been determined as shown below. The total production is not equal to the total attraction. Balance the trip productions and attractions. HBW trips HBW trips Zone i 1 2 3 Total P₁ 300 100 200 600 Zone j 1 2 3 Total Aj 150 300 350 800

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Quantity takeoff

Quantity takeoffs (QTO) are precise estimates of the materials and labor costs required to finish a construction project. During the pre-construction phase, an estimator prepares them, breaking down the project into smaller, more manageable parts that are easier to evaluate. These measurements are used to prepare a construction scope bid. Estimators examine the drawings, specifications, and models to figure out different quantities and their costs. Since, the components, their quantity, and price are all included in the model, quantity take-off can be done automatically using Building Information Modelling (BIM). The time taken for completing a construction project can be reduced by the use of quantity takeoff. These takeoffs are also called material takeoffs and construction takeoffs.