P5 Flashcards
(12 cards)
What is covered in the preplanning scope?
Who, what, where, when, how
What is construction preplanning?
A systematic analysis of activities and resources before actual construction.
What are the objectives of preplanning?
Time Money Safety Quality Efficiency
What are the results of preplanning?
Detailed written instructions for a task
Ex: sketches, drawings, list of materials, equipment, tools, instructions, models, schedules, construction sequences
What are the tools for preplanning?
Estimating Scheduling Block and Task drawings Physical models Computing models
What are the estimating methods?
Ball park estimate
Estimate by experts
Historical or statistical estimate
Estimate by computed standards (method-time measurement)
What is method-time measurement (MTM)?
Time and cost estimating based on computed standard values required for trained individuals to carry basic movements of fingers hands, limbs, and body
What are block and task drawings?
A single drawing that combines all the relevant information including structural, electrical, piping, machinery installation, materials, quantity, tools, and other related information
What are the characteristics of physical models?
Once popular Time consuming Difficult to change Extra effort Now replaced by computer models
What is constructability?
The optimum integration of construction knowledge and experience planning, engineering, procurement, and filed operations to achieve overall project objectives
What are the strategies to improve constructability?
Better construction methods, systems, equipment, and tools Simplify design Standardize design Communicate well Improve construction sequence
What are the proposed benefits of preplanning?
Saves costly rework and minimizes resource imbalance and idleness
Proactive vs reactive
Cost effective if done properly
Use the right tools and communicate well
